Washington County, IA Demographics
Washington County, IA is the 27th most populous of 99 counties in Iowa, with 22,565 residents across 569 square miles. That is about 40 people per square mile.
At the 2020 census
| Population | 22,565 |
|---|---|
| Land area | 569 sq mi |
| Density | 40 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Washington 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: Washington County, IA
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Washington County, IA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Washington County, IA
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9602 | 4,867 | 257.1 | 19 |
| Census Tract 9604 | 4,033 | 6.4 | 630 |
| Census Tract 9601.01 | 3,755 | 67.3 | 56 |
| Census Tract 9603 | 3,473 | 6.0 | 582 |
| Census Tract 9601.02 | 3,230 | 28.4 | 114 |
| Census Tract 9605 | 3,207 | 203.6 | 16 |
Related places
Other counties nearby
Nearest counties
Metro areas containing Washington 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.