Blood & Biohazard Cleanup Near Downtown Pomeroy Pomeroy, WA

Pomeroy is a city in southeastern Washington and the county seat of Garfield County — and it is the only incorporated city in the county.

Garfield County is Washington's least populous county, with just 2,286 residents in the 2020 census, and Pomeroy is its largest community.

Rancher Joseph M. Pomeroy purchased the land in 1864 and platted the townsite named for him on May 28, 1878; Lewis and Clark had passed through the area in 1805 along a Nez Perce trail.

Pomeroy has been the Garfield County seat since 1882, winning a fierce 1880s contest with the rival towns of Pataha and Asotin.

Garfield is the only county in Washington whose county seat was settled by an act of the United States Congress, which confirmed Pomeroy's status in 1884.

Pomeroy was officially incorporated on February 3, 1886.

A fire on July 18, 1900, destroyed half of Pomeroy's business district; the town rebuilt in brick, sparking a small building boom.

A 10-block section of downtown Pomeroy, anchored by the Garfield County Courthouse, was listed on the National Register of Historic Places in 2003 as the Downtown Pomeroy Historic District.

The 2020 census counted 1,389 people in Pomeroy, living in 601 households, with a median age of 51.1 years.

U.S. Route 12 runs through Pomeroy, linking it east to the Lewiston–Clarkston valley over 2,785-foot Alpowa Summit and west toward Walla Walla and the Tri-Cities.