The Chicago Tribune article also points out a few of the notable patterns:
The six suburban counties gained a total of 14,857 non-Hispanic black residents from 2010 to 2018, most of them in Will and DuPage, the new census data shows.
Cook County, meanwhile, lost 75,081 black residents over the same time period. Black residents’ share of the county population decreased the most of any racial group in the last eight years…
In each of the six suburbs surrounding Cook, non-white Asian residents grew by at least 13% since 2010. DuPage County grew by the most people, with an increase of 21,960 Asian residents in that time.
I’ll throw in three more patterns I see in the table:
- The further out counties, the more exurban locations (Kendall and McHenry Counties) have much higher proportions of white residents. It will be interesting to see how these change in the coming decades. Not only are those locations farther from Chicago, they also have fewer historic industrial suburbs (like Joliet in Will County and Elgin in Kane County) that attracted more non-white residents.
- In all of the six counties, Hispanics account for larger proportions of the overall population than black residents. Whether this translates into political representation or status within the region is debatable.
- The Asian population is more concentrated as a proportion in some counties – DuPage, Cook, and Lake – compared to others.