Entiat is a city in Chelan County, Washington, United States. It is part of the Wenatchee–East Wenatchee Metropolitan Statistical Area. The population was 1,112 at the 2010 census.
Entiat was officially incorporated on April 25, 1944. In 1960, Rocky Reach Dam was constructed downriver from Entiat, much of the town had to be relocated to higher ground due to the rising waters behind the dam. Most of the original buildings were razed or moved to a location north of the original town.
Entiat is located at the confluence of the Entiat and Columbia rivers. This section of the Columbia is known as Lake Entiat. This is the reservoir formed behind Rocky Reach Dam. The town is situated between the eastern foothills of the Cascade Mountain range, Lake Entiat and the Entiat River. Entiat is located at 47°40′40″N 120°12′47″W / 47.67778°N 120.21306°W / 47.67778; -120.21306 (47.677640, -120.213149).