Sunnyside, Washington

Sunnyside
Edison Avenue
Interactive location map of Sunnyside
Coordinates: 46°19′04″N 119°59′40″W / 46.31778°N 119.99444°W / 46.31778; -119.99444
CountryUnited States
StateWashington
CountyYakima
IncorporatedSeptember 16, 1902
Government
 • TypeCouncil–manager
Area
 • Total
7.53 sq mi (19.49 km2)
 • Land7.53 sq mi (19.49 km2)
 • Water0 sq mi (0.00 km2)
Elevation
735 ft (224 m)
Population
 (2020)
 • Total
16,375
 • Estimate 
(2022)
16,296
 • Density2,232.2/sq mi (861.84/km2)
Time zoneUTC−8 (Pacific (PST))
 • Summer (DST)UTC−7 (PDT)
ZIP code
98944
Area code509
FIPS code53-68750
GNIS feature ID2412008
Websitesunnyside-wa.gov

Sunnyside is a city in Yakima County, Washington, United States. The population was 16,375 at the 2020 census, making it the second-most populous city in Yakima County.