Total Population in Washington County, IA
ACS 2024 5-Year Estimates
22,561
Rank #1,743/3,222 · #27 in IA
46th
Washington 22,561
IA 3,210,507 -99.3%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Washington County's total population of 22,561 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Washington County for total population.
Nearby Rankings
Full ranking →| #1,740 | Leelanau County, MI | 22,734 |
| #1,741 | Panola County, TX | 22,726 |
| #1,742 | Lampasas County, TX | 22,715 |
| #1,743 | Washington County, IA | 22,561 |
| #1,744 | Clarke County, AL | 22,543 |
| #1,745 | Poinsett County, AR | 22,543 |
| #1,746 | Mingo County, WV | 22,542 |
About Total Population
Washington County, Iowa has a total population of 22,561, ranking #1,743 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Iowa, it ranks #27 of 99. This places it in the 46th percentile nationally.
Total population count from the American Community Survey. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.