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
 • MayorGary Vegar
Area
 • Total
4.78 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
 • Density1,370.0/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.