| State | Area Within Ohio River Basin (Square Miles) | Approximate Number of Miles of Ohio River Riverfront | Population within the Ohio River Basin (of ORSANCO member states) *the current Ohio River Basin population total = 30, 579,517 |
|||||
|---|---|---|---|---|---|---|---|---|
| _ | _ | _ | 1970 | 1980 | 1990 | 2000 | 2010 | 2020 |
| Illinois |
10,745
|
133 miles
|
606,062
|
634,259
|
623,454
|
630,523
|
586,361
|
560,283
|
| Indiana |
29,135
|
357 miles
|
3,597,990
|
3,830,357
|
3,882,781
|
4,262,799
|
4,631,544
|
4,880,648
|
| Kentucky |
39,375
|
664 miles
|
3,163,493
|
3,603,516
|
3,269,605
|
3,983,672
|
4,284,840
|
4,452,933
|
| New York |
1,955
|
–
|
158,355
|
172,303
|
163,747
|
163,878
|
155,596
|
148,248
|
| Ohio |
29,570
|
451 miles
|
6,298,122
|
6,558,723
|
6,692,023
|
7,114,446
|
7,519,567
|
7,793,454
|
| Pennsylvania |
15,620
|
80 miles
|
3,761,083
|
3,693,843
|
3,451,633
|
3,418,325
|
3,288,122
|
3,249,618
|
| Virginia |
7,175
|
–
|
438,698
|
531,743
|
515,052
|
531,594
|
538,218
|
513,061
|
| West Virginia |
20,610
|
277 miles
|
1,616,986
|
1,789,585
|
1,601,541
|
1,593,454
|
1,590,807
|
1,514,442
|
| Total |
154,185
|
1,962 miles
|
19,640,789
|
20,814,329
|
20,199,836
|
21,698,691
|
22,595,055
|
23,084,664
|
*Current total Ohio River Basin population (including non-member states): 30,579,517
Land area data taken from ORSANCO sources. Population data from the 1970, 1980, 1990, 2000, 2010, and 2020 US Census.