Washington County, Iowa Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Washington17,2207,346-0.44%1,3365.4City
Kalona22,7722,6381.21%1,2862.2City
Wellman31,5131,523-0.2%1,4111.1City
Riverside41,0411,060-0.48%5641.8City
Brighton5586598-0.51%7490.8City
Ainsworth65145080.19%1,3930.4City
Crawfordsville72782770%7570.4City
West Chester81471450%5810.3City

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Washington County, Iowa?

Washington is the largest city in Washington County.

What is the smallest city in Washington County, Iowa?

West Chester is the smallest city in Washington County.

How many cities are in Washington County?

There are 8 cities in Washington County, Iowa.

Frequently Asked Questions