Here are the 2023 metro census estimates:
1. Boise metro (Ada, Boise, Canyon, Gen, Owyhee) 824,657
2. Coeur d'Alene metro (Kootenai) 185,010
3. Idaho Falls metro (Bonneville, Butte, Jefferson) 168,322
4. Twin Falls metro (Twin Falls, Jerome) 120,635
5. Pocatello metro (Bannock, Power) 90,400
6. Rexburg micro (Fremont, Madison) 68,743
7. Lewiston metro (Nez Perce, Asotin WA) 65,536
8. Sandpoint micro (Bonner) 52,547
9. Blackfoot micro (Bingham) 50,395
10. Burley micro (Cassia, Minidoka) 48,176
11. Moscow micro (Latah) 41,301
12. Hailey micro (Blaine, Camas) 31,723
12. Mountain Home (Elmore) 29,724
Coeur d'Alene was the 19th fastest growing metro area in the U.S. between 2020-2023 (in % terms), with growth of 8.0%. Boise was 23rd, at 7.8% growth. Idaho Falls was 31st, with growth of 6.9%.
https://www.census.gov/data/tables/t...cal-areas.html