Prosser, Washington

Prosser
Benton County court house in Prosser
Location of Prosser, Washington
Coordinates: 46°12′42″N 119°45′10″W / 46.21167°N 119.75278°W / 46.21167; -119.75278
CountryUnited States
StateWashington
CountyBenton
Incorporated1899
Government
  TypeMayor–council
Area
  Total
4.79 sq mi (12.39 km2)
  Land4.66 sq mi (12.06 km2)
  Water0.13 sq mi (0.33 km2)
Elevation
663 ft (202 m)
Population
 (2020)
  Total
6,062
  Estimate 
(2022)
6,242
  Density1,369.98/sq mi (528.96/km2)
Time zoneUTC-8 (Pacific (PST))
  Summer (DST)UTC-7 (PDT)
ZIP code
99350
Area code509
FIPS code53-56450
GNIS feature ID2411497
Websitecityofprosser.com

Prosser (/ˈprɑːsər/) is a city in and the county seat of Benton County, Washington, United States. Situated along the Yakima River, it had a population of 6,062 at the 2020 census.