Washington County, IA ZIP codes

13 ZIP/ZCTAs intersecting this county.

ACS 2023 population

22,539

Median household income

$71,339

Median home value

$199,600

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Washington County (GEOID 19183). Methodology

Combined population of ZIP/ZCTAs intersecting this county: 44,766 (13 ZIPs).

Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology

ZIP/ZCTA overlap with Washington County

Population overlap

Share of each ZIP/ZCTA’s population located within Washington County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

52201100.0%
Directory county
5224769.1%
Directory county
5224824.9%
5232785.7%
Directory county
52353100.0%
Directory county
5235684.2%
Directory county
52359100.0%
Directory county
5254063.8%
Directory county
525859.7%
5262190.3%
Directory county
526410.5%
5265413.0%
527381.1%

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Washington County

ZIP	City	County	Population	Income
52201	Ainsworth	Washington County	1,359	$98,945
52247	Kalona	Washington County	5,301	$82,140
52248	Keota	Keokuk County	1,572	$77,143
52327	Riverside	Washington County	3,722	$83,250
52353	Washington	Washington County	9,072	$63,232
52356	Wellman	Washington County	2,754	$54,659
52359	West Chester	Washington County	344	$69,063
52540	Brighton	Washington County	1,102	$57,589
52585	Richland	Keokuk County	849	$73,194
52621	Crawfordsville	Washington County	620	$94,028
52641	Mount Pleasant	Henry County	12,796	$63,406
52654	Wayland	Henry County	1,886	$81,667
52738	Columbus Junction	Louisa County	3,389	$83,953