Prosser Flag

Prosser

County:
Benton County
County Seat:
Yes
Area (mi²):
5.168
State:
Washington

Prosser is a city located in Benton County, Washington. Prosser has a 2026 population of 6,540. It is also the county seat of Benton County. Prosser is currently growing at a rate of 2.51% annually and its population has increased by 6.41% since the most recent census, which recorded a population of 6,146 in 2020.

6.5K
Total Population
1,265
Density (mi²)
160 2.51%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)