The Downtown Pomeroy Historic District is a 13.7-acre (5.5 ha) historic district that was listed on the National Register of Historic Places (NRHP) in 2003. It is roughly bounded by Main St., Tenth and Ninth Sts., Columbia St., and Sixth St. in Pomeroy, Washington.The Garfield County Courthouse, which was designed by Charles Burggraf and is separately NRHP-listed, is one of its 42 contributing buildings.