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Hamilton County, OH Demographics

Hamilton County, OH is the 3rd most populous of 88 counties in Ohio, with 830,639 residents across 405 square miles. That is about 2,049 people per square mile.

At the 2020 census

Population 830,639
Land area 405 sq mi
Density 2,049 / sq mi

Data: 2020 Census · American Community Survey 2024

How Hamilton County compares to the US

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

Central Location: Hamilton County, OH

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

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

Census tracts in Hamilton County, OH

Name Population Sq mi Per sq mi
Census Tract 260.02 8,422 26.1 322
Census Tract 243.22 8,197 4.8 1,707
Census Tract 251.02 7,542 2.0 3,784
Census Tract 241 7,391 1.9 3,950
Census Tract 250.02 7,258 3.2 2,260
Census Tract 243.03 7,164 2.9 2,445
Census Tract 207.01 7,107 3.3 2,164
Census Tract 221.02 7,029 1.9 3,723
Census Tract 215.09 6,831 3.0 2,265
Census Tract 251.03 6,743 2.4 2,807
Census Tract 49 6,644 1.8 3,722
Census Tract 235.22 6,500 2.3 2,820
Census Tract 211.02 6,449 4.6 1,403
Census Tract 215.04 6,386 2.1 3,084
Census Tract 218.01 6,270 1.1 5,573
Census Tract 250.01 6,253 2.3 2,734
Census Tract 206.01 6,237 4.7 1,340
Census Tract 226.01 6,140 2.4 2,585
Census Tract 100.02 6,030 1.1 5,494
Census Tract 215.08 6,026 1.4 4,344
Census Tract 204.03 5,994 15.2 393
Census Tract 102.01 5,923 0.9 6,506
Census Tract 30 5,918 0.5 11,422
Census Tract 215.72 5,893 2.7 2,156
Census Tract 208.11 5,876 1.8 3,189
Census Tract 223.01 5,838 3.3 1,753
Census Tract 60 5,806 1.3 4,460
Census Tract 206.03 5,727 2.2 2,595
Census Tract 223.02 5,710 3.4 1,669
Census Tract 80 5,684 2.1 2,730
Census Tract 213.02 5,672 3.5 1,612
Census Tract 209.02 5,614 0.7 7,525
Census Tract 232.10 5,372 1.2 4,394
Census Tract 212.02 5,363 1.5 3,577
Census Tract 56 5,339 0.9 5,956
Census Tract 214.01 5,242 1.3 4,150
Census Tract 240.01 5,241 1.5 3,474
Census Tract 238 5,222 1.1 4,565
Census Tract 204.01 5,174 3.3 1,578
Census Tract 97 5,168 0.7 7,040
Census Tract 58 5,166 1.2 4,200
Census Tract 46.02 5,056 1.4 3,596
Census Tract 260.01 5,049 10.1 501
Census Tract 230.02 5,045 1.4 3,491
Census Tract 50 5,029 0.6 7,875
Census Tract 213.04 5,026 2.1 2,397
Census Tract 251.01 5,026 2.5 2,000
Census Tract 239.02 5,011 2.0 2,512
Census Tract 207.07 4,982 2.9 1,717
Census Tract 208.02 4,978 3.0 1,661
Census Tract 207.64 4,975 0.9 5,586
Census Tract 211.01 4,962 3.8 1,299
Census Tract 230.01 4,939 6.8 729
Census Tract 100.03 4,935 0.9 5,770
Census Tract 215.01 4,911 1.6 3,130
Census Tract 239.01 4,902 1.8 2,721
Census Tract 101 4,834 1.6 3,094
Census Tract 204.04 4,807 4.2 1,154
Census Tract 83 4,779 1.0 4,849
Census Tract 213.03 4,723 1.1 4,205
Census Tract 244.01 4,716 8.7 540
Census Tract 100.04 4,705 0.6 7,784
Census Tract 235.01 4,691 3.1 1,498
Census Tract 205.02 4,687 12.0 391
Census Tract 243.24 4,675 1.6 2,906
Census Tract 205.05 4,633 1.3 3,583
Census Tract 225 4,603 3.4 1,369
Census Tract 249.03 4,578 2.7 1,722
Census Tract 99.01 4,552 0.6 7,575
Census Tract 57.02 4,513 1.0 4,555
Census Tract 92 4,464 1.2 3,714
Census Tract 221.01 4,462 2.9 1,550
Census Tract 208.12 4,454 2.1 2,155
Census Tract 222 4,389 2.2 1,991
Census Tract 217.02 4,370 0.8 5,182
Census Tract 274 4,337 1.5 2,906
Census Tract 252 4,313 0.6 7,328
Census Tract 271 4,271 1.2 3,682
Census Tract 207.42 4,213 0.8 5,517
Census Tract 82.01 4,159 0.7 6,360
Census Tract 214.21 4,149 0.9 4,736
Census Tract 233 4,148 3.4 1,221
Census Tract 243.01 4,147 1.8 2,364
Census Tract 261.03 4,146 1.1 3,683
Census Tract 96 4,145 0.9 4,378
Census Tract 236 4,134 1.1 3,713
Census Tract 55 4,110 1.3 3,251
Census Tract 277 4,110 0.8 4,850
Census Tract 255 4,087 0.5 7,721
Census Tract 258 4,070 1.5 2,652
Census Tract 68 4,046 0.7 6,117
Census Tract 220 3,957 1.6 2,419
Census Tract 261.04 3,910 1.6 2,454
Census Tract 63 3,865 0.6 6,224
Census Tract 47.03 3,850 5.0 777
Census Tract 25 3,836 0.2 20,657
Census Tract 234 3,814 0.6 6,572
Census Tract 210.02 3,805 0.8 5,011
Census Tract 85.01 3,790 2.4 1,598
Census Tract 216.03 3,767 1.6 2,343

Showing the 100 most populous of 226 — the rest are shown on the map.

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About this page

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

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →