Pomeroy is located in Garfield County. About 1,389 people live here (as of 2020). Between 2010 and 2020, the population declined from 1,425 to 1,389. The region is at 566 meters above sea level. The area covers about 4.6 square kilometers. There are about 97 streets in Pomeroy. The region was founded in 1860. The postal codes are 99347. The dialing code is 509. Pomeroy is city in and the county seat of Garfield County, Washington, United States. Among other things, Pomeroy has schools. More information at
www.pomeroy-wa.com.