Top 100 Biggest Cities In Illinois (1970 Census)
|
Rank
|
City |
1970 Population
|
Growth Rate
(Annual)
|
| 1 |
Chicago
|
3,366,957
|
-0.5%
|
| 2 |
Rockford
|
147,370
|
1.5%
|
What was the largest city in Illinois in 1970?
In 1970, the largest city in Illinois was Chicago, with a population of 3,366,957. The second largest city is Rockford, with a population of 147,370.