Plymouth County vs Washington County
A side-by-side comparison of Plymouth County and Washington County: population, income, housing, and more.
Plymouth County and Washington County are counties in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Plymouth County has the higher population (25,699 vs 22,539 in Washington County). Plymouth County has the higher median household income ($81,600 vs $71,339 in Washington County). Plymouth County has the higher median home value ($218,600 vs $199,600 in Washington County).
Population, income & housing
| Plymouth County | Washington County | |
|---|---|---|
| Population | 25,699 | 22,539 |
| Median age | 41.1 yrs | 40.3 yrs |
| Median household income | $81,600 | $71,339 |
| Median home value | $218,600 | $199,600 |
| Median gross rent | $865 | $862 |
| Housing units | 10,863 | 9,638 |
| Homeownership rate | 73.7% | 72.2% |
| Bachelor's degree or higher | 23.9% | 24.9% |
| Unemployment rate | 1.9% | 2.5% |
Trends (ACS 5-year, 2019–2023)
| Plymouth County | Washington County | |
|---|---|---|
| Population | 25,068 → 25,699 (+2.5%) | 22,100 → 22,539 (+2.0%) |
| Median household income | $67,297 → $81,600 (+21.3%) | $62,556 → $71,339 (+14.0%) |
| Median home value | $163,500 → $218,600 (+33.7%) | $151,600 → $199,600 (+31.7%) |
| Median gross rent | $660 → $865 (+31.1%) | $754 → $862 (+14.3%) |
Plymouth County
25,06825,699
$67,297$81,600
$163,500$218,600
$660$865
Washington County
22,10022,539
$62,556$71,339
$151,600$199,600
$754$862
Age & race/ethnicity
Age distribution (share)
| Plymouth County | Washington County | |
|---|---|---|
| Under 5 | 5.7% | 6.3% |
| 5 to 17 | 19.3% | 18.3% |
| 18 to 24 | 7.1% | 7.5% |
| 25 to 34 | 10.8% | 11.1% |
| 35 to 44 | 12.2% | 12.5% |
| 45 to 54 | 11.9% | 11.2% |
| 55 to 64 | 13.7% | 13.3% |
| 65 to 74 | 11.1% | 11.0% |
| 75 and over | 8.2% | 8.9% |
Race & ethnicity (share)
| Plymouth County | Washington County | |
|---|---|---|
| White (non-Hispanic) | 88.8% | 89.2% |
| Black or African American | 2.4% | 0.6% |
| American Indian & Alaska Native | 0.2% | 0.0% |
| Asian | 0.5% | 0.5% |
| Native Hawaiian & Pacific Islander | 0.1% | 0.0% |
| Some other race | 0.0% | 0.2% |
| Two or more races | 1.9% | 2.1% |
| Hispanic or Latino | 6.1% | 7.4% |
Educational attainment (age 25+)
Share of adults 25+
| Plymouth County | Washington County | |
|---|---|---|
| No high school diploma | 5.8% | 6.8% |
| High school graduate | 36.3% | 35.8% |
| Some college or associate's | 34.0% | 32.5% |
| Bachelor's degree | 18.4% | 16.5% |
| Graduate or professional degree | 5.5% | 8.4% |
Commute to work
How workers get to work (share)
| Plymouth County | Washington County | |
|---|---|---|
| Drove alone | 79.3% | 77.8% |
| Carpooled | 8.7% | 9.1% |
| Public transit | 0.4% | 1.0% |
| Walked | 2.2% | 2.5% |
| Bicycle | 0.1% | 0.0% |
| Worked from home | 8.6% | 8.5% |
| Other means | 0.7% | 1.0% |
Housing
Units in structure (share)
| Plymouth County | Washington County | |
|---|---|---|
| 1-unit, detached | 77.0% | 79.0% |
| 1-unit, attached | 3.2% | 3.4% |
| 2 to 4 units | 5.9% | 7.9% |
| 5 to 19 units | 7.8% | 4.9% |
| 20 or more units | 1.8% | 1.3% |
| Mobile home & other | 4.3% | 3.5% |
Poverty & households
| Plymouth County | Washington County | |
|---|---|---|
| Poverty rate | 6.8% | 8.5% |
| Average household size | 2.46 | 2.45 |
| Mean commute (minutes) | 19 | 24 |
| Median year structure built | 1972 | 1962 |
Full profiles
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