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Ohio Demographics

Ohio is the 7th most populous of 52 states in the United States, with 11,799,406 residents across 40,859 square miles. That is about 289 people per square mile. 76% of residents live in urban areas.

At the 2020 census

Population 11,799,406
Land area 40,859 sq mi
Density 289 / sq mi
Urban share 76%

Data: 2020 Census · American Community Survey 2024

How Ohio compares to the US

We're computing this state's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Ohio

Measured from the state's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Ohio — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Counties in Ohio

Name Population Sq mi Per sq mi
Franklin County 1,323,807 532.4 2,486
Cuyahoga County 1,264,550 457.2 2,766
Hamilton County 830,639 405.5 2,049
Summit County 540,428 412.8 1,309
Montgomery County 537,309 461.4 1,165
Lucas County 431,290 339.7 1,270
Butler County 390,357 466.5 837
Stark County 374,853 575.2 652
Lorain County 312,964 490.5 638
Warren County 242,337 401.4 604
Lake County 232,603 229.3 1,015
Mahoning County 228,614 411.5 556
Delaware County 214,124 443.1 483
Clermont County 208,601 452.6 461
Trumbull County 201,977 617.6 327
Medina County 182,470 421.5 433
Licking County 178,519 682.4 262
Greene County 167,966 413.6 406
Portage County 161,791 487.4 332
Fairfield County 158,921 504.4 315
Clark County 136,001 395.9 344
Wood County 132,248 617.2 214
Richland County 124,936 495.2 252
Wayne County 116,894 554.8 211
Miami County 108,774 406.6 268
Allen County 102,206 402.5 254
Columbiana County 101,877 531.9 192
Ashtabula County 97,521 702.6 139
Geauga County 95,397 400.3 238
Tuscarawas County 93,263 567.6 164
Muskingum County 86,410 664.5 130
Ross County 77,093 689.2 112
Erie County 75,610 251.3 301
Hancock County 74,920 531.3 141
Scioto County 74,008 610.1 121
Belmont County 66,497 532.1 125
Marion County 65,359 403.8 162
Jefferson County 65,249 408.1 160
Union County 62,784 431.7 145
Knox County 62,721 525.5 119
Athens County 62,431 503.6 124
Washington County 59,771 632.0 95
Sandusky County 58,896 408.2 144
Huron County 58,565 492.2 119
Pickaway County 58,539 501.2 117
Lawrence County 58,240 453.4 128
Seneca County 55,069 551.0 100
Ashland County 52,447 423.0 124
Darke County 51,881 598.1 87
Shelby County 48,230 407.7 118
Auglaize County 46,422 401.4 116
Logan County 46,150 458.5 101
Holmes County 44,223 422.6 105
Madison County 43,824 466.7 94
Brown County 43,676 489.5 89
Highland County 43,317 553.1 78
Fulton County 42,713 405.4 105
Mercer County 42,528 462.4 92
Crawford County 42,025 401.8 105
Clinton County 42,018 408.7 103
Preble County 40,999 424.2 97
Ottawa County 40,328 254.7 158
Champaign County 38,714 429.0 90
Guernsey County 38,438 522.2 74
Defiance County 38,286 411.4 93
Williams County 37,102 420.7 88
Coshocton County 36,612 563.9 65
Perry County 35,408 407.9 87
Morrow County 34,950 406.1 86
Putnam County 34,451 482.5 71
Jackson County 32,653 420.3 78
Hardin County 30,696 470.3 65
Gallia County 29,220 466.5 63
Fayette County 28,951 406.4 71
Van Wert County 28,931 409.1 71
Hocking County 28,050 421.3 67
Henry County 27,662 416.0 66
Adams County 27,477 583.9 47
Pike County 27,088 440.3 62
Carroll County 26,721 394.6 68
Meigs County 22,210 430.1 52
Wyandot County 21,900 406.9 54
Paulding County 18,806 416.4 45
Harrison County 14,483 402.3 36
Noble County 14,115 398.0 35
Morgan County 13,802 416.4 33
Monroe County 13,385 455.7 29
Vinton County 12,800 412.4 31

Largest cities in Ohio

Name Population Sq mi Per sq mi
Columbus, OH 905,587 220.4 4,109
Cleveland, OH 372,406 77.7 4,791
Cincinnati, OH 309,306 77.9 3,970
Toledo, OH 270,835 80.5 3,365
Akron, OH 190,441 61.9 3,075
Dayton, OH 137,549 55.8 2,465
Parma, OH 81,138 20.0 4,052
Canton, OH 70,896 26.4 2,690
Lorain, OH 65,221 23.6 2,763
Hamilton, OH 63,488 21.5 2,960
Youngstown, OH 60,053 33.9 1,770
Springfield, OH 58,690 26.2 2,244

Showing the 12 most populous of 1,265 — the rest are shown on the map.

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About this page

This page shows demographics for a US state from the 2020 census and the American Community Survey: population, land area, density, and how the state compares to national averages for income, housing, age, and more.

Use the links below to drill into the state's counties and largest cities, or open any point of the state in the radius tool to measure the population within a distance or drive time.

Read how BlockAtlas computes population within an area →