i was curious to see how chicago's greater downtown core is doing since its nadir in the 1990 census. that census year, the near north, near west, and near south sides all reached their all-time bottoms, after the previous 4 decades of urban flight had knee-capped them well and good. the loop wasn't at an all time bottom in 1990, but it wasn't an area of terribly significant residential population at any point in the 20th century, so.....
Community Area: 1990 - 2020 - change
the loop: 11,954 - 42,298 - +30,344 (+253.8%)
near north: 62,842 - 105,481 - +42,639 (+67.9%)
near west: 46,197 - 67,881 - +21,684 (+46.9%)
near south: 6,828 - 28,795 - +15,139 (+221.7%)
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total: 127,821 - 244,445 - +116,624 (+91.2%)
so, a damn near doubling over the past 3 decades, not too shabby at all.
for historical reference, those 4 communtiy areas had a combined population high of
267,893 back in 1950 (with over half of that in the near west side alone).
if current trends continue this decade, we'll blow past that mark by 2030 to set a new all time population high for greater downtown chicago!