Tag Archives: Ohio county population data

2020 Populations of Ohio Counties

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2020 populations of Ohio counties

Continuing with the latest data dump, we’ll look at 2020 populations of Ohio counties.

Top 30 Largest Counties by Population by Year
Census 2010——————————–Census 2020
1. Cuyahoga: 1,280,122—————–1. Franklin: 1,323,807
2. Franklin: 1,163,414——————–2. Cuyahoga: 1,264,817
3. Hamilton: 802,374———————3. Hamilton: 830,639
4. Summit: 541,781———————–4. Summit: 540,428
5. Montgomery: 535,153—————–5. Montgomery: 537,309
6. Lucas: 441,815————————-6. Lucas: 431,279
7. Stark: 375,586————————–7. Butler: 390,357
8. Butler: 368,130————————-8. Stark: 374,853
9. Lorain: 301,356————————-9. Lorain: 312,964
10. Mahoning: 238,823—————–10. Warren: 242,337
11. Lake: 230,041————————11. Lake: 232,603
12. Warren: 212,693———————12. Mahoning: 228,614
13. Trumbull: 210,312——————-13. Delaware: 214,124
14. Clermont: 197,363——————-14. Clermont: 208,601
15. Delaware: 174,214——————-15. Trumbull: 201,977
16. Medina: 172,332———————-16. Medina: 182,470
17. Licking: 166,492———————–17. Licking: 178,519
18. Greene: 161,573———————-18. Greene: 167,966
19. Portage: 161,419———————-19. Portage: 161,791
20. Fairfield: 146,156———————-20. Fairfield: 158,921
21. Clark: 138,333————————–21. Clark: 136,001
22. Wood: 125,488————————-22. Wood: 132,248
23. Richland: 124,475———————23. Richland: 124,936
24. Wayne: 114,520————————24. Wayne: 116,894
25. Columbiana: 107,841—————–25. Miami: 108,774
26. Allen: 106,331————————–26. Allen: 102,206
27. Miami: 102,506————————-27. Columbiana: 101,877
28. Ashtabula: 101,497——————-28. Ashtabula: 97,574
29. Geauga: 93,389———————–29. Geauga: 95,397
30. Tuscarawas: 92,582——————30. Tuscarawas: 93,263

Franklin County moved into the top spot to be the state’s most populated county.

Top 20 Fastest-Growing Counties by Total Growth 2010-2020
1. Franklin: +160,393
2. Delaware: +39,910
3. Warren: +29,644
4. Hamilton: +28,265
5. Butler: +22,227
6. Fairfield: +12,765
7. Licking: +12,027
8. Lorain: +11,608
9. Clermont: +11,238
10. Union: +10,484
11. Medina: +10,138
12. Wood: +6,760
13. Greene: +6,393
14. Miami: +6,268
15. Pickaway: +2,841
16. Lake: +2,562
17. Wayne: +2,374
18. Montgomery: +2,156
19. Geauga: +2,008
20. Holmes: +1,857

Franklin blew away the competition, adding more than 4x as many people as 2nd place Delaware County. Delaware County may be called the state’s fastest-growing by percent, but it’s clear what the dominant destination is in Ohio.



Top 20 Shrinking Counties by Total Decline 2010-2020
1. Cuyahoga: -15,305
2. Lucas: -10,536
3. Mahoning: -10,209
4. Trumbull: -8,335
5. Columbiana: -5,964
6. Scioto: -5,491
7. Jefferson: -4,460
8. Lawrence: -4,210
9. Allen: -4,125
10. Ashtabula: -3,923
11. Belmont: -3,903
12. Athens: -2,326
13. Carroll: -2,115
14. Sandusky: -2,048
15. Washington: -2,007
16. Crawford: -1,759
17. Gallia: -1,714
18. Seneca: -1,676
19. Guernsey: -1,649
20. Pike: -1,621

Core counties in Northern Ohio, as well as pretty much all of Appalachia and rural counties saw large population losses. This pattern of urban/metro counties gaining while exurban and rural counties declined was repeated nationally. 52% of all US counties lost population, with the vast majority of them being exurban and rural. There was clearly a strong trend towards people moving to or near major cities.

All US counties can be found at 2020 Census Population and Housing Map, while Franklin County historic population and demographic data is located at the Franklin County page.



Where Does the Immigrant Population Live?

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In Franklin County, the immigrant- or foreign-born- population has been growing rapidly for the last few decades. Latin American immigration was dominant for many years, but has recently taken secondary position to even faster Asian growth. But where does the immigrant population live, exactly? Where they end up in the county is perhaps not where common belief would always suggest. The interactive map below breaks down not only the main continent of origin for immigrants by census tract, but also gives the top 5 specific origin nations. While at first glance, the continents seem heavily grouped together, a deeper look at nations of origin indicate that immigrant populations are much more diverse and spread out much more evenly than it appears.

View larger map

The Census Tract Maps offers a great deal of demographic and population data in all subjects, while Historic US Maps provides old maps of all types.