Washington County, Illinois 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
Nashville12,9873,090-0.86%9693.1City
Okawville21,3461,366-0.37%6652.0Village
Irvington3566582-0.7%5601.0Village
Hoyleton4500518-0.99%6580.8Village
Ashley5447461-0.89%3961.1City
Addieville6250253-0.4%2521.0Village
Richview7229236-0.87%1991.1Village
Oakdale8194197-0.51%1231.6Village
Du Bois91801780%1711.1Village
Radom10180182-0.55%1721.0Village
Venedy11124126-0.8%4410.3Village

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, Illinois?

Nashville is the largest city in Washington County.

What is the smallest city in Washington County, Illinois?

Venedy is the smallest city in Washington County.

How many cities are in Washington County?

There are 11 cities in Washington County, Illinois.

Frequently Asked Questions