Pasco, WA, United States

Pasco ( PAS-koh) is a city in, and the county seat of, Franklin County, Washington, United States. It had a population of 59,781 at the 2010 census, and 75,432 as of the July 1, 2019 Census Bureau estimate.Pasco is one of three cities (the others being Kennewick and Richland) that make up Washington state's Tri-Cities region, a mid-sized metropolitan area of approximately 296,224 people.