Washington County, Oklahoma Cities (2025)

6 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Bartlesville138,60137,3830.64%1,71222.55 City
Dewey23,4453,3790.38%1,2782.69 City
Copan37417100.82%7041.05 Town
Ramona45545280.91%6760.82 Town
Ochelata54444280.68%6800.65 Town
Vera63343240.6%4220.79 Town

Washington County Cities Summary

Largest City

Bartlesville is the largest city in Washington County, with a population of 38,601.

Smallest City

Vera is the smallest city in Washington County.

10 Largest Cities

There are 6 cities in Washington County, Oklahoma.