Defiance County, OH Demographics
Defiance County, OH is the 65th most populous of 88 counties in Ohio, with 38,286 residents across 411 square miles. That is about 93 people per square mile.
At the 2020 census
| Population | 38,286 |
|---|---|
| Land area | 411 sq mi |
| Density | 93 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Defiance 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: Defiance County, OH
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Defiance County, OH — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Defiance County, OH
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9589 | 5,224 | 55.5 | 94 |
| Census Tract 9587 | 4,637 | 4.2 | 1,096 |
| Census Tract 9582 | 4,543 | 130.8 | 35 |
| Census Tract 9585 | 4,318 | 4.8 | 906 |
| Census Tract 9583 | 4,281 | 19.7 | 218 |
| Census Tract 9581 | 4,250 | 94.2 | 45 |
| Census Tract 9584 | 3,869 | 92.2 | 42 |
| Census Tract 9586 | 3,630 | 7.1 | 512 |
| Census Tract 9588 | 3,534 | 2.9 | 1,211 |
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Metro areas containing Defiance 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.