Pasco, Washington

Pasco ( ) is a city in and the county seat of Franklin County, Washington, United States. The population was 77,108 at the 2020 census, and estimated at 81,724 in 2024. 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 303,622 people.