Here are the largest ethnic, racial, ancestral or tribal groups in 2018 with a population of 20,000 & over in each State according to the US Census American Community Survey (ACS) 1-year sample. It's not comprehensive for all states because it's of a one year sample but may give us an idea of what each state's largest or most common groups are.
You will notice that there are quite a few states that aren't as diverse as others especially with the size of their ethnic or racial minorities or where they rank overall with 20,000 as the cut off. Of course a population of 20,000 in a state that's over 10 million barely registers especially if they're spread out but it's a number I chose to stop at.
Also these are for single response only -- meaning those that are not mixed with any other ethnic group or ancestry. Hispanics or Latinos can be of any race.
Alaska 2018
1 Alaska Native tribes, specified alone 88,591 *It was not broken down further into each specific Alaska tribe unfortunately
2 Mexican 28,656
3 Filipino alone 28,497
4 Black or African American alone 25,197
5 German alone 24,697
===================================================
6 American (US) alone 20,303
Total Population: 737,438
Hawaii 2018
1 Filipino alone 220,315
2 Japanese alone 163,174
3 Native Hawaiian alone 91,442
4 Chinese, except Taiwanese alone 55,464
5 Mexican 46,165 *The Mexican population finally overtook the Puerto Rican population in Hawaii
===================================================
6 Puerto Rican 45,801
7 Spaniard or Spanish 35,933
8 Black or African American alone 28,325
9 Korean alone 24,804
Total Population: 1,420,491
*I believe the Samoan alone (unmixed) population in Hawaii is at least 20,000 by now it was over 18,000 in 2010.
Idaho 2018
1 Mexican 188,003
2 English alone 113,237
3 American (US) alone 99,161
4 German alone 85,099
5 European (unspecified) alone 51,230
===================================================
6 Irish alone 44,425
Total Population: 1,754,208
Oregon 2018
1 Mexican 450,251
2 German alone 176,956
3 American (US) alone 161,003
4 European (unspecified) alone 152,742
5 English alone 115,632
===================================================
6 Irish alone 101,794
7 Black or African American alone 82,046
8 Scottish or Scotch-Irish alone 43,715
9 Chinese, except Taiwanese alone 40,224
10 Norwegian alone 38,297
11 Italian alone 35,655
12 Vietnamese alone 32,447
13 Asian Indian alone 26,182
14 Filipino alone 24,144
Total Population: 4,190,713
North Dakota 2018
1 German alone 106,088
2 Norwegian alone 62,860
3 Black or African American alone 25,896
Total Population: 760,077
Alabama 2018
1 Black or African American alone 1,307,040
2 American (US) alone 769,295
3 English alone 147,886
4 Irish alone 129,729
5 Mexican 127,838
===================================================
6 German alone 86,533
7 Scottish or Scotch-Irish alone 65,758
8 European (unspecified) alone 65,464
9 Subsaharan African (unspecified) 36,034
10 Puerto Rican 26,822
11 Italian alone 24,759
Total Population: 4,887,871
Vermont 2018
1 American (US) alone 44,142
2 English alone 31,164
3 French Canadian alone 27,872
4 Irish alone 25,523
Total Population: 626,299
West Virginia 2018
1 American (US) alone 175,137
2 German alone 82,638
3 English alone 75,208
4 Black or African American alone 68,679
5 Irish alone 61,358
===================================================
6 Italian alone 28,386
7 Scottish or Scotch-Irish alone 28,181
8 European alone 24,661
Total Population: 1,805,832
Wisconsin 2018
1 German alone 810,108
2 Black or African American alone 370,632
3 Mexican 281,850
4 American (US) alone 154,771
5 Polish alone 126,448
===================================================
6 Norwegian alone 119,576
7 Irish alone 106,127
8 European alone 72,826
9 Puerto Rican 63,932
10 English alone 55,245
11 Hmong alone 51,089
12 Italian alone 48,670
13 Dutch alone 33,131
14 Asian Indian alone 33,093
15 Chinese, except Taiwanese alone 25,715
16 Swedish alone 23,174
Total Population: 5,813,568
Nebraska 2018
1 German alone 242,100
2 Mexican 154,073
3 Black or African American alone 91,221
4 American (US) alone 57,160
5 Irish alone 38,979
===================================================
6 English alone 30,666
7 European alone 29,327
8 Czech alone 24,460
Total Population: 1,929,268
Louisiana 2018
1 Black or African American alone 1,509,407
2 American (US) alone 316,316
3 French (except Basque) alone 206,099
4 French Canadian alone 124,066
5 English alone 95,264
===================================================
6 Mexican 92,142
7 Irish alone 81,104
8 German alone 68,595
9 Italian alone 65,791
10 Honduran 45,615
11 Cajun alone 45,281
12 African (Subsaharan, unspecified) alone 37,286
13 European alone 35,364
14 Vietnamese alone 29,392
15 Scottish or Scotch-Irish alone 26,050
Total Population: 4,659,978
Delaware 2018*data is very limited with Delaware for 2018.
1 Black or African American alone 217,594
2 Mexican 36,782
3 Puerto Rican 24,471
Total Population: 967,171
White alone 659,781 *Was not further defined but I'd imagine there are a few of European / White ancestry that are at least 20,000
Maine 2018
1 English alone 81,635
2 American (US) alone 75,397
3 French Canadian alone 70,046
4 Irish alone 56,650
5 French (except Basque) alone 56,118
===================================================
6 Scottish or Scotch-Irish alone 23,207
7 German alone 20,362
Total Population: 1,338,404
Nevada 2018
1 Mexican 668,365
2 Black or African American alone 280,385
3 Filipino alone 129,739
4 German alone 81,465
5 American (US) alone 76,990
===================================================
6 Irish alone 64,006
7 Italian alone 60,844
8 English alone 57,513
9 European (unspecified) alone 45,809
10 Salvadoran 39,484
11 Chinese, except Taiwanese alone 37,555
12 Cuban 35,071
13 Spaniard or Spanish 25,894
14 Puerto Rican 25,740
15 Guatemalan 22,294
16 Scottish or Scotch-Irish alone 20,521
Total Population: 3,034,392
Utah 2018
1 Mexican 313,226
2 English alone 258,097
3 European alone 170,414
4 American (US) alone 118,053
5 German alone 70,759
===================================================
6 Irish alone 36,319
7 British alone 35,069
8 Black or African American alone 40,365
9 Scottish or Scotch-Irish alone 29,036
10 Danish alone 27,710
11 Swedish alone 23,934
12 Italian alone 22,693
13 Spaniard or Spanish 21,943
14 Norwegian alone 20,579
Total Population: 3,161,105
Missouri 2018
1 Black or African American alone 704,327
2 German alone 509,496
3 American (US) alone 389,501
4 Irish alone 186,803
5 Mexican 179,787
===================================================
6 English alone 155,291
7 European alone 97,912
8 Italian alone 63,506
9 Scottish or Scotch-Irish alone 50,794
10 Asian Indian alone 30,435
11 Chinese, except Taiwanese alone 27,901
12 Polish alone 25,542
13 French (except Basque) alone 25,371
Total Population: 6,126,452
Rhode Island 2018
1 Black or African American alone 70,749
2 Italian alone 59,453
3 Puerto Rican 54,342
4 Dominican (Dominican Republic) 52,645
5 Irish alone 47,049
===================================================
6 Portuguese alone 39,109
7 American (US) alone 27,094
8 French Canadian alone 24,645
9 English alone 23,223
10 French (except Basque) alone 22,693
11 Guatemalan 21,933
Total Population: 1,057,315
Arkansas 2018
1 Black or African American alone 456,714
2 American (US) alone 296,059
3 Mexican 160,697
4 German alone 86,248
5 English alone 83,126
===================================================
6 Irish alone 78,056
7 European alone 35,289
8 Scottish or Scotch-Irish alone 33,462
9 Salvadoran 24,879
Total Population: 3,013,825
Oklahoma 2018
1 Mexican 346,720
2 Black or African American alone 287,680
3 American (US) alone 283,837
4 German alone 141,552
5 Cherokee alone 120,019
===================================================
6 Irish alone 110,445
7 English alone 88,436
8 European alone 56,744
9 Choctaw alone 51,001
10 Scottish or Scotch-Irish alone 37,109
11 Creek alone 26,218
12 Vietnamese alone 20,629
Total Population: 3,943,079
South Carolina 2018
1 Black or African American alone 1,353,599
2 American (US) alone 497,715
3 English alone 153,326
4 Mexican 147,935
5 German alone 147,001
===================================================
6 Irish alone 128,800
7 Scottish or Scotch-Irish alone 101,752
8 European alone 90,650
9 Italian alone 58,210
10 African (Subsaharan, unspecified) alone 50,242
11 Puerto Rican 40,888
12 Polish alone 23,328
13 British alone 22,819
14 Asian Indian alone 21,145
Total Population: 5,084,127
New Mexico 2018
1 Mexican 641,955
2 Hispanic or Latino (other, unspecified) 187,858
3 Spaniard or Spanish 168,238
4 Navajo alone 124,715
5 American (US) alone 61,443
===================================================
6 Black or African American alone 46,064
7 English alone 45,935
8 European alone 41,175
9 German alone 39,341
10 Irish alone 27,080
Total Population: 2,095,428
All specified other American Indian tribes alone 65,771 *It's possible that there is at least one Native American tribe with 20,000 or more, unfortunately it was not further defined
Iowa 2018
1 German alone 434,603
2 Mexican 155,179
3 American (US) alone 123,670
4 Black or African American alone 115,137
5 Irish alone 91,382
===================================================
6 English alone 62,461
7 Norwegian alone 52,829
8 Dutch alone 47,503
9 European alone 42,539
10 Swedish alone 21,070
Total Population: 3,156,145
Minnesota 2018
1 German alone 551,317
2 Black or African American alone 367,653
3 Norwegian alone 222,649
4 Mexican 202,331
5 American (US) alone 134,937
===================================================
6 European alone 91,591
7 Irish alone 91,240
8 Hmong alone 82,778
9 Swedish alone 74,848
10 Somali alone 71,382
11 Scandinavian alone 55,380
12 Polish alone 49,939
13 English alone 44,232
14 Asian Indian alone 43,596
15 Chippewa alone 37,574
16 Finnish alone 33,863
17 Chinese, except Taiwanese alone 31,890
18 African (Subsaharan, unspecified) alone 29,600
19 Vietnamese alone 25,404
20 Italian alone 25,304
21 Dutch alone 20,407
Total Population: 5,611,179
Washington 2018
1 Mexican 767,821
2 Black or African American alone 291,808
3 German alone 275,283
4 American (US) alone 219,749
5 European (unspecified) alone 199,249
===================================================
6 English alone 162,041
7 Irish alone 154,171
8 Chinese, except Taiwanese alone 140,750
9 Asian Indian alone 128,356
10 Norwegian alone 114,158
11 Filipino alone 100,877
12 Vietnamese alone 84,125
13 Scottish or Scotch-Irish alone 71,619
14 Italian alone 67,291
15 Korean alone 66,990
16 Swedish alone 40,368
17 Japanese alone 38,846
18 Puerto Rican 38,591
19 Russian alone 38,410
20 British alone 38,364
21 Ukrainian alone 36,821
22 Polish alone 35,158
23 Dutch alone 34,885
24 Scandinavian alone 32,552
25 Northern European (unspecified) alone 30,755
26 Spaniard or Spanish 30,184
27 French (except Basque) alone 28,387
28 Ethiopian alone 23,732
29 Subsaharan African (unspecified) 23,392
30 Hispanic or Latino (other, unspecified) 22,216
31 Salvadoran 22,030
32 Guatemalan 21,008
33 Somali alone 20,445
34 Cambodian alone 20,437
Total Population: 7,535,591
Wyoming 2018
1 Mexican 48,755
2 German alone 39,743
3 American (US) alone 23,860
4 English alone 21,564
Total Population: 577,737
Mississippi 2018
1 Black or African American alone 1,135,599
2 American (US) alone 277,088
3 English alone 87,184
4 Irish alone 74,371
5 Mexican 47,586
===================================================
6 German alone 41,450
7 Scottish or Scotch-Irish alone 40,011
8 European alone 33,961
9 French (except Basque) alone 23,065
Total Population: 2,986,530
South Dakota 2018
1 German alone 123,831
2 Sioux alone 57,592
3 Norwegian alone 37,895
4 American (US) alone 29,629
Total Population: 882,235
New Hampshire 2018
1 Irish alone 67,103
2 French Canadian alone 63,623
3 English alone 56,922
4 American (US) alone 43,823
5 Italian alone 40,102
===================================================
6 French (except Basque) alone 39,255
7 Black or African American alone 23,432
8 Puerto Rican 20,193
Total Population: 1,356,458
Montana 2018
1 German alone 76,591
2 American (US) alone 49,348
3 Irish alone 37,977
4 Norwegian alone 34,382
5 English alone 31,403
===================================================
6 Mexican 27,294
7 European alone 23,036
Total Population: 1,062,305
All specified other American Indian tribes alone 56,532 *It's possible that there's at least one Native American tribe with 20,000 or more given the remaining undefined population of 56,532.
North Carolina 2018
1 Black or African American alone 2,222,533
2 American (US) alone 946,103
3 Mexican 564,685
4 English alone 374,284
5 German alone 274,752
===================================================
6 Irish alone 239,157
7 Scottish or Scotch-Irish alone 218,068
8 European (unspecified) alone 164,141
9 Puerto Rican 110,248
10 Asian Indian alone 104,438
11 Italian alone 102,248
12 Subsaharan African (unspecified) 65,673
13 Chinese (incl. Taiwanese) alone 53,510
14 Honduran 47,410
15 Salvadoran 47,351
16 British alone 40,263
17 Polish alone 37,257
18 Guatemalan 31,507
19 French (except Basque) alone 30,426
20 Dominican (Dominican Republic) 30,172
21 Vietnamese alone 28,006
22 Cuban 27,695
23 Hispanic or Latino (other, unspecified) 24,957
24 Colombian 22,945
25 Korean alone 22,544
26 Filipino alone 20,713
Total Population: 10,383,620
Connecticut 2018
1 Black or African American alone 391,552
2 Puerto Rican 298,006
3 Italian alone 219,651
4 Irish alone 124,308
5 American (US) alone 97,765
===================================================
6 Polish alone 88,238
7 Asian Indian alone 70,961
8 Mexican 56,462
9 English alone 54,297
10 German alone 51,008
11 Dominican (Dominican Republic) 50,399
12 Jamaican alone 43,490
13 French Canadian alone 37,856
14 Ecuadorian 35,877
15 Chinese, except Taiwanese alone 35,627
16 French (except Basque) alone 34,849
17 European alone 29,370
18 Guatemalan 24,458
19 Portuguese alone 23,815
20 Colombian 23,668
Total Population: 3,572,665
Colorado 2018
1 Mexican 911,881
2 German alone 283,423
3 Black or African American alone 237,578
4 American (US) alone 157,882
5 European alone 133,347
===================================================
6 Irish alone 132,939
7 English alone 131,294
8 Spaniard or Spanish 113,610
9 Hispanic or Latino (other, unspecified) 77,044
10 Italian alone 77,019
11 Scottish or Scotch-Irish alone 51,897
12 Puerto Rican 38,288
13 Asian Indian alone 35,512
14 Polish alone 32,758
15 Norwegian alone 32,715
16 Chinese, except Taiwanese alone 31,086
17 Swedish alone 28,894
18 Vietnamese alone 25,088
19 Korean alone 22,998
20 British alone 21,597
Total Population: 5,695,564
Georgia 2018
1 Black or African American alone 3,319,691
2 American (US) alone 1,026,859
3 Mexican 593,262
4 English alone 310,509
5 Irish alone 233,125
===================================================
6 German alone 192,040
7 European (unspecified) alone 156,149
8 Asian Indian alone 141,915
9 Scottish or Scotch-Irish alone 122,681
10 Puerto Rican 103,647
11 Subsaharan African (unspecified) 101,436
12 Italian alone 73,642
13 Chinese, except Taiwanese alone 65,390
14 Guatemalan 64,360
15 Vietnamese alone 60,114
16 Jamaican alone 57,579
17 Korean alone 53,227
18 Salvadoran 48,755
19 British alone 41,361
20 Cuban 35,052
21 Polish alone 32,385
22 Colombian 31,484
23 French (except Basque) alone 26,979
24 Filipino alone 26,109
25 Honduran 25,271
26 Dominican (Dominican Republic) 22,927
27 Haitian alone 22,450
28 Hispanic or Latino (other, unspecified) 20,525
29 Nigerian alone 20,295
30 Ethiopian alone 20,208
Total Population: 10,519,475
Tennessee 2018
1 Black or African American alone 1,137,801
2 American (US) alone 744,738
3 English alone 239,264
4 Mexican 217,875
5 Irish alone 200,073
===================================================
6 German alone 171,187
7 Scottish or Scotch-Irish alone 134,275
8 European alone 130,629
9 African (Subsaharan, unspecified) alone 55,662
10 Italian alone 51,250
11 Puerto Rican 37,537
12 British alone 30,636
13 Asian Indian alone 26,391
14 French (except Basque) alone 21,146
15 Chinese, except Taiwanese alone 20,915
16 Polish alone 20,709
17 Guatemalan 20,245
Total Population: 6,770,010
Indiana 2018
1 Black or African American alone 637,277
2 German alone 555,932
3 American (US) alone 447,292
4 Mexican 359,126
5 English alone 193,661
===================================================
6 Irish alone 180,297
7 European alone 116,468
8 Polish alone 59,509
9 Italian alone 56,086
10 Scottish or Scotch-Irish alone 54,096
11 Asian Indian alone 43,709
12 Puerto Rican 37,370
13 Dutch alone 32,521
14 Chinese, except Taiwanese alone 32,334
15 African (Subsaharan, unspecified) alone 25,990
16 French (except Basque) alone 23,176
17 British alone 21,095
Total Population: 6,691,878
Virginia 2018
1 Black or African American alone 1,631,512
2 American (US) alone 628,320
3 English alone 275,646
4 German alone 227,452
5 Irish alone 206,512
===================================================
6 Salvadoran 182,831
7 Mexican 173,359
8 European alone 157,895
9 Asian Indian alone 153,601
10 Puerto Rican 106,886
11 African (Subsaharan, unspecified) alone 100,861
12 Scottish or Scotch-Irish alone 99,645
13 Italian alone 90,133
14 Filipino alone 80,656
15 Chinese, except Taiwanese alone 75,325
16 Korean alone 73,411
17 Vietnamese alone 68,558
18 Guatemalan 54,318
19 Honduran 52,419
20 British alone 39,631
21 Peruvian 39,060
22 Polish alone 38,938
23 Bolivian 38,345
24 Hispanic or Latino (other, unspecified) 31,301
25 Pakistani alone 28,196
26 Ethiopian alone 26,078
27 Spaniard or Spanish 22,989
28 Colombian 22,782
29 French (except Basque) alone 22,614
30 Cuban 20,443
Total Population: 8,517,685
Kansas 2018
1 Mexican 284,470
2 German alone 268,609
3 Black or African American alone 171,141
4 American (US) alone 157,604
5 English alone 91,329
===================================================
6 Irish alone 72,312
7 European alone 60,612
8 Scottish or Scotch-Irish alone 24,826
9 Asian Indian alone 20,564
Total Population: 2,911,510
Kentucky 2018
1 American (US) alone 595,987
2 Black or African American alone 354,761
3 English alone 232,767
4 German alone 203,963
5 Irish alone 180,386
===================================================
6 European alone 92,273
7 Mexican 85,810
8 Scottish or Scotch-Irish alone 67,390
9 Italian alone 28,160
Total Population: 4,468,402
California 2018
1 Mexican 12,808,944
2 Black or African American alone 2,283,850
3 Chinese, except Taiwanese alone 1,542,802
4 Filipino alone 1,299,922
5 Asian Indian alone 815,948
===================================================
6 American (US) alone 803,144
7 Salvadoran 743,147
8 Vietnamese alone 674,243
9 European alone 665,330
10 German alone 587,486
11 Irish alone 489,015
12 Korean alone 470,112
13 English alone 455,396
14 Guatemalan 451,360
15 Italian alone 425,772
16 Hispanic or Latino (other, unspecified) 286,119
17 Japanese alone 279,888
18 Spaniard or Spanish 272,584
19 Puerto Rican 226,738
20 Armenian alone 199,987
21 Scottish or Scotch-Irish alone 170,897
22 Iranian alone 152,302
23 Russian alone 137,259
24 Portuguese alone 118,856
25 Nicaraguan 118,472
26 Polish alone 117,557
27 British alone 113,918
28 Peruvian 110,298
29 African (Subsaharan, unspecified) alone 110,116
30 Norwegian alone 105,797
31 Hmong alone 105,009
32 Cuban 103,868
33 Colombian 92,193
34 French (except Basque) alone 91,701
35 Cambodian alone 82,765
36 Honduran 82,730
37 Taiwanese alone 74,682
38 Swedish alone 72,812
39 Pakistani alone 72,534
40 Eastern European alone 70,198
41 Dutch alone 69,112
42 American Indian or Alaska Native tribes, not specified alone 67,332
43 Ukrainian alone 64,985
44 Northern European alone 62,063
45 Laotian alone 60,894
46 All other American Indian tribes (with only one tribe reported) alone 58,439
47 Argentinean 54,475
48 Afghan alone 53,354
49 Mexican American Indian alone 53,003
50 Thai alone 51,554
51 Greek alone 50,673
52 Other Arab alone 48,403
53 Samoan alone 40,179
54 Scandinavian alone 39,253
55 Egyptian alone 37,039
56 Nigerian alone 36,415
57 Canadian alone 36,196
58 Ecuadorian 36,138
59 Ethiopian alone 33,538
60 Arab (unspecified) alone 32,497
61 French Canadian alone 32,400
62 Guamanian or Chamorro alone 31,994
63 Chilean 31,578
64 Hungarian alone 30,971
65 Danish alone 30,879
66 Romanian alone 30,685
67 Other Asian, not specified alone 29,741
68 Brazilian alone 28,044
69 Fijian alone 27,420
70 Indonesian alone 26,470
71 Lebanese alone 26,369
72 Costa Rican 24,122
73 Native Hawaiian alone 22,294
Total Population: 39,557,045
Texas 2018
1 Mexican 9,659,802
2 Black or African American alone 3,527,027
3 American (US) alone 1,354,101
4 German alone 741,604
5 English alone 540,740
===================================================
6 Asian Indian alone 452,598
7 Irish alone 444,808
8 Salvadoran 351,209
9 European alone 346,247
10 Hispanic or Latino (other, unspecified) 313,358
11 Vietnamese alone 267,996
12 Scottish or Scotch-Irish alone 223,849
13 Chinese, except Taiwanese alone 215,366
14 Puerto Rican 214,765
15 Honduran 175,601
16 African (Subsaharan, unspecified) alone 174,106
17 Filipino alone 146,320
18 Spaniard or Spanish 145,240
19 Italian alone 144,635
20 Guatemalan 108,501
21 French (except Basque) alone 101,808
22 Cuban 93,713
23 British alone 89,339
24 Nigerian alone 84,770
25 Colombian 84,283
26 Polish alone 81,718
27 Korean alone 80,649
28 Pakistani alone 67,368
29 Czech alone 61,181
30 American Indian or Alaska Native tribe, not specified alone 58,332
31 Venezuelan 56,804
32 Norwegian alone 45,031
33 Dutch alone 36,100
34 Iranian alone 34,486
35 Swedish alone 33,721
36 French Canadian alone 32,815
37 Peruvian 30,748
38 Russian alone 29,880
39 Nicaraguan 26,375
40 Dominican (Dominican Republic) 24,409
41 Japanese alone 24,311
42 Ethiopian alone 24,142
43 Burmese alone 22,429
44 Eastern European alone 21,561
45 Welsh alone 21,336
46 Northern European alone 20,952
47 Nepalese alone 20,684
48 Cherokee alone 20,203
Total Population: 28,701,845
Florida 2018
1 Black or African American alone 3,410,741
2 Cuban 1,580,886
3 American (US) alone 1,425,483
4 Puerto Rican 1,187,437
5 Mexican 736,566
===================================================
6 German alone 523,596
7 Irish alone 493,502
8 Italian alone 482,648
9 English alone 443,197
10 Haitian alone 426,690
11 Colombian 403,331
12 European alone 270,586
13 Dominican (Dominican Republic) 237,844
14 Venezuelan 237,782
15 Jamaican alone 236,984
16 Nicaraguan 177,649
17 Asian Indian alone 171,778
18 Polish alone 166,779
19 Scottish or Scotch-Irish alone 166,302
20 Honduran 159,518
21 Guatemalan 139,543
22 Peruvian 128,326
23 Hispanic or Latino (other, unspecified) 116,987
24 Chinese, except Taiwanese alone 110,011
25 Filipino alone 107,199
26 British alone 85,371
27 French (except Basque) alone 84,854
28 Salvadoran 82,084
29 Ecuadorian 78,827
30 Brazilian alone 78,122
31 Spaniard or Spanish 77,949
32 Russian alone 77,637
33 African (Subsaharan, unspecified) alone 74,703
34 Argentinean 74,515
35 Vietnamese alone 72,431
36 French Canadian alone 58,597
37 Eastern European alone 48,291
38 Dutch alone 46,700
39 Greek alone 44,578
40 Norwegian alone 42,927
41 Canadian alone 41,389
42 Chilean 40,110
43 Panamanian 38,956
44 Portuguese alone 35,225
45 Hungarian alone 35,033
46 Swedish alone 32,820
47 Korean alone 30,485
48 Ukrainian alone 25,897
49 Trinidadian and Tobagonian alone 24,421
50 Costa Rican 23,341
51 West Indian (unspecified) alone 22,421
Total Population: 21,299,325
New York 2018
1 Black or African American alone 3,069,259
2 Puerto Rican 1,070,071
3 Italian alone 976,859
4 Dominican (Dominican Republic) 877,519
5 American (US) alone 721,450
===================================================
6 Chinese, except Taiwanese alone 689,449
7 Irish alone 536,878
8 Mexican 497,331
9 Asian Indian alone 379,439
10 German alone 362,635
11 Polish alone 298,946
12 Ecuadorian 260,584
13 Jamaican alone 237,198
14 English alone 204,850
15 Salvadoran 181,886
16 European alone 178,478
17 Colombian 164,017
18 Russian alone 154,394
19 Haitian alone 144,788
20 Hispanic or Latino (other, unspecified) 144,053
21 Guyanese alone 141,277
22 Korean alone 123,507
23 African (Subsaharan, unspecified) alone 112,467
24 Filipino alone 111,456
25 Bangladeshi alone 93,040
26 Honduran 92,523
27 Guatemalan 88,464
28 Eastern European alone 84,399
29 Peruvian 81,508
30 Cuban 80,474
31 West Indian (unspecified) alone 78,048
32 Ukrainian alone 77,613
33 Greek alone 76,645
34 Pakistani alone 73,209
35 French (except Basque) alone 69,029
36 Scottish or Scotch-Irish alone 67,840
37 Trinidadian and Tobagonian alone 62,807
38 Spaniard or Spanish 60,992
39 Hungarian alone 55,666
40 Albanian alone 43,796
41 British West Indian alone 43,477
42 Dutch alone 39,481
43 French Canadian alone 39,473
44 Japanese alone 38,853
45 British alone 36,659
46 Nigerian alone 35,057
47 Egyptian alone 34,483
48 Other Arab alone 33,428
49 American Indian or Alaska Native tribe, not specified alone 31,614
50 Argentinean 30,939
51 Vietnamese alone 29,751
52 Ghanaian alone 29,739
53 Panamanian 27,688
54 Romanian alone 26,413
55 Turkish alone 24,242
56 Venezuelan 23,173
57 Portuguese alone 22,779
58 Swedish alone 21,339
59 Norwegian alone 20,245
Total Population: 19,542,209
New Jersey 2018
1 Black or African American alone 1,207,995
2 Italian alone 534,300
3 Puerto Rican 488,181
4 Asian Indian alone 387,244
5 Dominican (Dominican Republic) 311,213
===================================================
6 Irish alone 278,461
7 Mexican 211,254
8 American (US) alone 185,654
9 Polish alone 153,619
10 German alone 149,713
11 Chinese, except Taiwanese alone 148,003
12 Ecuadorian 138,735
13 Colombian 127,803
14 Filipino alone 120,222
15 Korean alone 99,165
16 Cuban 97,336
17 Peruvian 86,611
18 Salvadoran 78,993
19 English alone 68,088
20 European alone 63,359
21 Guatemalan 63,213
22 Haitian alone 62,311
23 Hispanic or Latino (other, unspecified) 53,992
24 Jamaican alone 51,262
25 Russian alone 50,304
26 Portuguese alone 44,482
27 Eastern European alone 44,344
28 Honduran 44,200
29 African (Subsaharan, unspecified) alone 40,668
30 Egyptian alone 37,065
31 Spaniard or Spanish 36,932
32 Pakistani alone 31,529
33 Ukrainian alone 29,371
34 Scottish or Scotch-Irish alone 29,370
35 Brazilian alone 28,628
36 Greek alone 26,897
37 Nigerian alone 26,569
38 Hungarian alone 24,177
39 Costa Rican 23,511
40 Guyanese alone 20,310
Total Population: 8,908,520
Maryland 2018
1 Black or African American alone 1,810,885
2 American (US) alone 214,261
3 German alone 192,321
4 Salvadoran 184,140
5 Irish alone 142,596
===================================================
6 Mexican 108,960
7 English alone 106,649
8 African (Subsaharan, unspecified) alone 102,075
9 Asian Indian alone 99,035
10 Italian alone 89,261
11 European alone 88,295
12 Chinese, except Taiwanese alone 85,118
13 Puerto Rican 60,552
14 Guatemalan 53,958
15 Filipino alone 49,140
16 Polish alone 47,702
17 Korean alone 45,273
18 Nigerian alone 38,322
19 Ethiopian alone 36,133
20 Jamaican alone 36,075
21 Scottish or Scotch-Irish alone 35,762
22 Peruvian 33,227
23 Honduran 33,075
24 Vietnamese alone 28,104
25 Dominican (Dominican Republic) 26,503
26 Hispanic or Latino (other, unspecified) 23,806
27 Russian alone 23,287
28 Eastern European alone 23,047
29 Colombian 22,111
30 Pakistani alone 20,172
Total Population: 6,042,718
Massachusetts 2018
1 Black or African American alone 537,523
2 Irish alone 421,165
3 Puerto Rican 329,713
4 Italian alone 262,399
5 American (US) alone 200,342
===================================================
6 Chinese, except Taiwanese alone 176,164
7 Dominican (Dominican Republic) 167,333
8 Portuguese alone 153,946
9 English alone 125,662
10 Asian Indian alone 120,063
11 French Canadian alone 89,098
12 French (except Basque) alone 77,751
13 Haitian alone 77,266
14 Polish alone 74,972
15 Brazilian alone 74,347
16 European alone 68,395
17 Salvadoran 66,430
18 German alone 57,631
19 Vietnamese alone 52,771
20 Mexican 51,415
21 Cape Verdean alone 49,906
22 Guatemalan 47,932
23 Scottish or Scotch-Irish alone 45,608
24 Colombian 42,112
25 Greek alone 38,581
26 Russian alone 38,434
27 African (Subsaharan, unspecified) alone 28,868
28 Cambodian alone 27,572
29 Hispanic or Latino (other, unspecified) 26,293
30 Jamaican alone 25,446
31 Eastern European alone 25,110
32 Korean alone 23,561
33 Canadian alone 22,034
Total Population: 6,902,149
Ohio 2018
1 Black or African American alone 1,446,306
2 German alone 938,209
3 American (US) alone 677,129
4 Irish alone 329,005
5 English alone 265,375
===================================================
6 Italian alone 238,765
7 Mexican 206,307
8 European alone 153,325
9 Puerto Rican 137,104
10 Polish alone 127,298
11 Scottish or Scotch-Irish alone 103,425
12 Asian Indian alone 95,049
13 African (Subsaharan, unspecified) alone 70,628
14 Chinese, except Taiwanese alone 57,253
15 Hungarian alone 51,557
16 French (except Basque) alone 33,305
17 Slovak alone 31,506
18 British alone 31,269
19 Dutch alone 26,765
20 Pennsylvania German alone 26,085
21 Eastern European alone 25,821
22 Greek alone 22,795
23 Welsh alone 22,765
Total Population: 11,689,442
Pennsylvania 2018
1 Black or African American alone 1,428,406
2 German alone 959,048
3 American (US) alone 498,135
4 Puerto Rican 477,312
5 Italian alone 460,463
===================================================
6 Irish alone 437,389
7 Polish alone 225,581
8 English alone 191,657
9 Mexican 158,286
10 Asian Indian alone 143,539
11 Dominican (Dominican Republic) 138,181
12 European alone 120,542
13 Chinese, except Taiwanese alone 115,639
14 Pennsylvania German alone 94,738
15 Scottish or Scotch-Irish alone 92,303
16 African (Subsaharan, unspecified) alone 64,855
17 Slovak alone 52,720
18 Ukrainian alone 47,267
19 Russian alone 47,011
20 Vietnamese alone 40,920
21 Eastern European alone 39,725
22 Korean alone 39,144
23 Dutch alone 30,621
24 Hispanic or Latino (other, unspecified) 30,351
25 Hungarian alone 27,140
26 Greek alone 26,066
27 French (except Basque) alone 25,651
28 British alone 25,183
29 Filipino alone 25,128
30 Cuban 24,185
31 Colombian 22,956
32 Jamaican alone 22,432
33 Welsh alone 21,108
Total Population: 12,807,060
Michigan 2018
1 Black or African American alone 1,376,751
2 German alone 494,526
3 American (US) alone 429,010
4 Mexican 374,225
5 Polish alone 257,520
===================================================
6 English alone 216,665
7 Irish alone 205,474
8 Dutch alone 180,709
9 European alone 148,683
10 Italian alone 142,514
11 Asian Indian alone 117,983
12 Scottish or Scotch-Irish alone 71,679
13 Chinese, except Taiwanese alone 58,101
14 French (except Basque) alone 50,428
15 Puerto Rican 47,412
16 Assyrian/Chaldean/Syriac alone 44,759
17 French Canadian alone 43,008
18 Arab (unspecified) alone 40,636
19 African (Subsaharan, unspecified) alone 39,075
20 Lebanese alone 35,870
21 Finnish alone 31,993
22 Korean alone 27,174
23 Filipino alone 26,962
24 Chippewa alone 26,133
25 Iraqi alone 24,850
26 Swedish alone 24,584
27 British alone 23,208
28 Hungarian alone 22,245
29 Vietnamese alone 21,132
30 Eastern European alone 20,730
Total Population: 9,995,915
Other Arab alone 30,503 *I believe that the majority of the "Other Arab alone" are Yemeni
Arizona 2018
1 Mexican 1,978,995
2 Black or African American alone 336,340
3 German alone 255,382
4 American (US) alone 212,733
5 English alone 161,479
===================================================
6 Irish alone 155,695
7 Navajo alone 151,713
8 European alone 108,656
9 Italian alone 91,383
10 Hispanic or Latino (other, unspecified) 70,718
11 Puerto Rican 62,519
12 Asian Indian alone 58,926
13 Polish alone 52,466
14 Spaniard or Spanish 51,579
15 Scottish or Scotch-Irish alone 51,170
16 Chinese, except Taiwanese alone 45,854
17 Filipino alone 44,169
18 Norwegian alone 37,218
19 American Indian or Alaska Native tribe, not specified alone 32,828
20 Vietnamese alone 27,751
21 British alone 24,359
22 Swedish alone 23,486
23 French (except Basque) alone 23,145
24 Guatemalan 22,381
Total Population: 7,171,646
All specified other American Indian tribes alone 139,287* These weren't broken down any further but i'd imagine there's at least one tribe or more with a population of 20,000 or more given the large number not defined.
Illinois 2018
1 Black or African American alone 1,793,079
2 Mexican 1,744,028
3 German alone 662,289
4 American (US) alone 379,242
5 Polish alone 354,575
===================================================
6 Irish alone 345,368
7 Asian Indian alone 256,122
8 Italian alone 218,317
9 Puerto Rican 206,543
10 English alone 161,089
11 European alone 151,701
12 Chinese, except Taiwanese alone 129,625
13 Filipino alone 124,649
14 African (Subsaharan, unspecified) alone 61,441
15 Scottish or Scotch-Irish alone 56,844
16 Korean alone 56,597
17 Swedish alone 50,848
18 Greek alone 43,953
19 Norwegian alone 39,988
20 Pakistani alone 39,236
21 Guatemalan 37,874
22 Dutch alone 37,333
23 Russian alone 36,944
24 Vietnamese alone 35,367
25 Hispanic or Latino (other, unspecified) 32,158
26 Ecuadorian 31,705
27 Ukrainian alone 29,808
28 Romanian alone 27,850
29 British alone 27,668
30 Cuban 27,617
31 Lithuanian alone 27,220
32 Eastern European alone 26,805
33 Spaniard or Spanish 25,131
34 Colombian 24,807
35 French (except Basque) alone 24,743
36 Nigerian alone 22,268
37 Czech alone 22,217
Total Population: 12,741,080