2025 county and metro area population estimates have been released by the US Census. These numbers are for the change between July, 2024 and July, 2025.
Top 25 Ohio Counties by Population on July 1, 2025
1. Franklin: 1,361,536
2. Cuyahoga: 1,232,925
3. Hamilton: 838,418
4. Montgomery: 539,598
5. Summit: 538,376
6. Lucas: 423,347
7. Butler: 400,128
8. Stark: 373,771
9. Lorain: 323,219
10. Warren: 257,181
11. Delaware: 242,032
12. Lake: 232,217
13. Mahoning: 224,706
14. Clermont: 216,977
15. Trumbull: 198,972
16. Licking: 185,564
17. Medina: 185,025
18. Greene: 174,322
19. Fairfield: 169,752
20. Portage: 163,404
21. Clark: 135,340
22. Wood: 134,176
23. Richland: 124,893
24. Wayne: 116,758
25. Miami: 112,634
Top 25 Ohio Counties with the Largest Population Increase July 1, 2024 to July 1, 2025
1. Franklin: +8,880
2. Delaware: +5,169
3. Montgomery: +2,668
4. Clermont: +2,663
5. Butler: +2,347
6. Greene: +2,174
7. Warren: +2,142
8. Lorain: +2,060
9. Fairfield: +2,046
10. Union: +1,463
11. Summit: +1,431
12. Licking: +1,224
13. Madison: +1,197
14. Wood: +1,104
15. Pickaway: +771
16. Miami: +762
17. Medina: +750
18. Muskingum: +693
19. Hamilton: +559
20. Stark: +531
21. Knox: +438
22. Ross: +431
23. Geauga: +376
24. Crawford: +356
25. Morrow: +297
Ohio Metro Area Population on July 1, 2025
1. Cincinnati: 2,312,858
2. Columbus: 2,242,028
3. Cleveland: 2,165,775
4. Dayton: 826,554
5. Akron: 701,780
6. Toledo: 599,376
7. Youngstown: 423,678
8. Canton: 400,246
Metro Area Population Change July 1, 2024 to July 1, 2025
1. Columbus: +21,312
2. Cincinnati: +13,107
3. Dayton: +5,604
4. Cleveland: +2,539
5. Akron: +1,628
6. Canton: +439
7. Toledo: -26
8. Youngstown: -913
Metro Population Components of Change
Total Natural Growth (Births vs Deaths) July 1, 2024 to July 1, 2025
1. Columbus: +7,453
2. Cincinnati: +4,322
3. Toledo: -101
4. Dayton: -243
5. Canton: -735
6. Akron: -1,301
7. Youngstown: -1,893
8. Cleveland: -2,431
Total Domestic Migration July 1, 2024 to July 1, 2025
1. Dayton: +4,272
2. Columbus: +2,921
3. Cincinnati: +1,836
4. Akron: +1,155
5. Canton: +992
6. Youngstown: +676
7. Cleveland: -178
8. Toledo: -693
Total International Migration July 1, 2024 to July 1, 2025
1. Columbus: +10,968
2. Cincinnati: +6,900
3. Cleveland: +5,082
4. Akron: +1,735
5. Dayton: +1,566
6. Toledo: +755
7. Youngstown: +295
8. Canton: +175
