Sunnyside city, Washington (data.census.gov)Sunnyside city, Washington is a city, town, place equivalent, or township located in Washington. Sunnyside city, Washington has a land area of 7.5 square miles.
Sunnyside, Washington (Wikipedia)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.
Wikivoyage
Sunnyside (en.wikivoyage.org)Sunnyside is a town on the Columbia River Plateau of Washington State, in the Yakima Valley.