- Grant County, Washington (data.census.gov)
Grant County, Washington has 2,679.5 square miles of land area and is the 4th largest county in Washington by total area. Grant County, Washington is bordered by Kittitas County, Washington, Adams County, Washington, Lincoln County, Washington, Franklin County, Washington, Douglas County, Washington, Yakima County, Washington, Okanogan County, Washington, and Benton County, Washington.
eastbound on Interstate 90
westbound on interstate 90
- Grant County, Washington (Wikipedia)
Grant County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 99,123. The county seat is Ephrata, and the largest city is Moses Lake. The county was formed out of Douglas County in February 1909 and is named for U.S. President Ulysses S. Grant.