Allen County, OH Demographics
Allen County, OH is the 26th most populous of 88 counties in Ohio, with 102,206 residents across 403 square miles. That is about 254 people per square mile.
At the 2020 census
| Population | 102,206 |
|---|---|
| Land area | 403 sq mi |
| Density | 254 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Allen 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: Allen County, OH
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Allen County, OH — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Allen County, OH
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 110 | 5,437 | 5.2 | 1,042 |
| Census Tract 106 | 5,128 | 56.6 | 91 |
| Census Tract 109 | 4,545 | 2.8 | 1,610 |
| Census Tract 113.01 | 4,538 | 10.5 | 431 |
| Census Tract 108.01 | 4,453 | 4.6 | 977 |
| Census Tract 101 | 4,126 | 7.9 | 522 |
| Census Tract 130 | 4,005 | 1.0 | 3,976 |
| Census Tract 123 | 3,893 | 0.8 | 4,987 |
| Census Tract 102 | 3,812 | 69.8 | 55 |
| Census Tract 108.02 | 3,602 | 9.1 | 397 |
| Census Tract 121 | 3,438 | 13.6 | 253 |
| Census Tract 122 | 3,338 | 0.8 | 4,419 |
| Census Tract 140 | 3,316 | 15.5 | 214 |
| Census Tract 139 | 3,313 | 26.8 | 123 |
| Census Tract 114 | 3,143 | 35.7 | 88 |
| Census Tract 119 | 3,089 | 8.1 | 383 |
| Census Tract 112 | 2,843 | 5.7 | 497 |
| Census Tract 113.02 | 2,771 | 15.3 | 181 |
| Census Tract 115 | 2,757 | 36.0 | 77 |
| Census Tract 138 | 2,614 | 2.6 | 1,024 |
| Census Tract 120 | 2,593 | 2.7 | 966 |
| Census Tract 116 | 2,579 | 32.2 | 80 |
| Census Tract 124 | 2,466 | 0.8 | 3,237 |
| Census Tract 131 | 2,343 | 0.6 | 4,017 |
| Census Tract 118 | 2,298 | 3.8 | 611 |
| Census Tract 134 | 2,124 | 0.8 | 2,653 |
| Census Tract 132 | 1,827 | 0.4 | 4,527 |
| Census Tract 126 | 1,742 | 0.8 | 2,191 |
| Census Tract 141 | 1,695 | 1.1 | 1,609 |
| Census Tract 129 | 1,668 | 0.3 | 5,240 |
| Census Tract 103 | 1,600 | 28.9 | 55 |
| Census Tract 127 | 1,481 | 0.4 | 4,141 |
| Census Tract 133 | 1,352 | 0.3 | 3,983 |
| Census Tract 136 | 1,182 | 0.6 | 2,015 |
| Census Tract 137 | 1,095 | 0.5 | 2,075 |
Related places
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Nearest counties
Metro areas containing Allen County
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.