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Prosser, WA
Prosser 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.
Prosser was long home to Native Americans who lived and fished along the river. Colonel William Farrand Prosser first surveyed the area in 1879, then claimed homestead in 1882. The Northern Pacific Railroad laid tracks through the area two years later. A town plat was filed by Colonel Prosser in 1885. Lewis Hinzerling built a flour mill at Prosser falls in 1887, encouraging further settlement of the area. The first irrigation canal was completed in 1893 by the Prosser Falls Land and Irrigation Company. Prosser was officially incorporated in 1899 with a population of 229 people. Throughout the 1910s and 1920s various companies drilled in this area for oil and natural gas. There were no large findings and the Great Depression put an end to exploration. In more recent years,
The Birthplace of Washington Wine!
Prosser's location on a major river (the Yakima) and highway access has encouraged a growing wine business and associated tourist industry. Several Prosser wineries are located within the Yakima Valley appellation.
