Basin Population

State Area Within Ohio River Basin (Square Miles) Population
_ _ 1970 1980 1990 2000 2010
Illinois
10,745
606,062
634,259
623,454
630,523
647,147
Indiana
29,135
3,597,990
3,830,357
3,882,781
4,262,799
4,585,511
Kentucky
39,375
3,163,493
3,603,516
3,269,605
3,983,672
4,282,345
New York
1,955
158,355
172,303
163,747
163,878
157,365
Ohio
29,570
6,298,122
6,558,723
6,692,023
7,114,446
7,388,102
Pennsylvania
15,620
3,761,083
3,693,843
3,451,633
3,418,325
3,320,455
Virginia
7,175
438,698
531,743
515,052
531,594
543,753
West Virginia
20,610
1,616,986
1,789,585
1,601,541
1,593,454
1,590,934
Total
154,185
19,640,789
20,814,329
20,199,836
21,698,691
22,515,612

 

Land area data taken from Commission sources. Population data from the 1970, 1980, 1990, 2000 and 2010 US Census.