Grant County, Washington

Grant County
Grant County Courthouse
Official seal of Grant County
Map of Washington highlighting Grant County
Location within the U.S. state of Washington
Map of the United States highlighting Washington
Washington's location within the U.S.
Coordinates: 47°13′N 119°28′W / 47.21°N 119.47°W / 47.21; -119.47
Country United States
State Washington
FoundedFebruary 24, 1909
Named forUlysses S. Grant
SeatEphrata
Largest cityMoses Lake
Area
 • Total2,791 sq mi (7,230 km2)
 • Land2,680 sq mi (6,900 km2)
 • Water112 sq mi (290 km2)  4.0%
Population
 (2020)
 • Total99,123
 • Estimate 
(2022)
101,311 Increase
 • Density35/sq mi (14/km2)
Time zoneUTC−8 (Pacific)
 • Summer (DST)UTC−7 (PDT)
Congressional district4th
Websitewww.grantcountywa.gov

Grant County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 99,123.[1] The county seat is Ephrata,[2] and the largest city is Moses Lake. The county was formed out of Douglas County in February 1909[3] and is named for U.S. President Ulysses S. Grant.

Grant County comprises the Moses Lake, WA Micropolitan Statistical Area, which is also part of the Moses Lake-Othello, WA Combined Statistical Area.

  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved July 30, 2023.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Milestones for Washington State History — Part 3: 1901 to 1950". HistoryLink.org. March 6, 2003.