Moses Lake is a city in central Washington and the largest community in Grant County. It sits about 105 miles east of Yakima and 180 miles east of Seattle in the Columbia Basin. The city is known for its large freshwater lake, sandy landscapes, and outdoor recreation. Moses Lake also serves as an important agricultural, transportation, and industrial center in eastern Washington.
Location Map of Moses Lake, Grant County, Washington
About Map: The map shows the location of Moses Lake in Grant County, in the U.S. state of Washington.
Moses Lake Map, Washington
About Moses Lake Map: The Google Map highlights the location of Moses Lake in Grant County, Washington. Use the zoom, satellite, and street-view options to explore the city's neighborhoods, roads, and nearby places.
Where is Moses Lake Located?
Moses Lake is a city located in Grant County, Washington, the United States. It lies in the Columbia Basin of central Washington, about 105 miles east of Yakima and 180 miles east of Seattle. Ephrata is roughly 10 miles north, while Quincy is about 25 miles southwest. Moses Lake is positioned near 47.130° North latitude and 119.278° West longitude. The 2020 Census recorded 25,146 residents. The city covers about 18.75 square miles, or 48.56 square kilometers, including land and water. Moses Lake itself is the city's defining geographic feature and supports boating, fishing, swimming, and other water activities. Potholes Reservoir and Potholes State Park are also nearby. A unique fact about Moses Lake is that its large lake was expanded and developed as part of the Columbia Basin irrigation project, which transformed the surrounding dry landscape into a major agricultural region.
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Moses Lake City Facts
| City | Moses Lake |
| State | Washington |
| County | Grant County |
| Country | United States |
| Region | Columbia Basin |
| Incorporated | 1938 |
| Founded | 1909 |
| Total Area | 18.75 sq mi (48.56 sq km) |
| Land Area | 18.18 sq mi (47.09 sq km) |
| Water Area | 0.57 sq mi (1.48 sq km) |
| Elevation | 1,070 ft (326 m) |
| Population (2023 estimate) | About 26,000 |
| Population (2020 Census) | 25,146 |
| Population Density | 1,383 people per sq mi |
| Time Zone | Pacific Time (PST/PDT) |
| ZIP Codes | 98837 |
| Area Code | 509 |
| Major Highways | I-90, US-17, and WA-171 |
| Public Transit | Grant Transit Authority |
| Major Attractions | Moses Lake, Potholes State Park, Surf 'n Slide Water Park, and Grant County Historical Museum |
| Official Website | https://www.cityofml.com/ |
Distance from Moses Lake, WA to Nearby Cities
- Ephrata, WA – 10 miles (16 km)
- Warden, WA – 16 miles (26 km)
- Quincy, WA – 25 miles (40 km)
- Soap Lake, WA – 24 miles (39 km)
- Othello, WA – 30 miles (48 km)
- George, WA – 29 miles (47 km)
- Royal City, WA – 20 miles (32 km)
- Mattawa, WA – 43 miles (69 km)
- Connell, WA – 51 miles (82 km)
- Ellensburg, WA – 70 miles (113 km)
- Pasco, WA – 83 miles (134 km)
- Richland, WA – 86 miles (138 km)
- Kennewick, WA – 88 miles (142 km)
- Yakima, WA – 105 miles (169 km)
- Wenatchee, WA – 78 miles (126 km)
- Walla Walla, WA – 125 miles (201 km)
- Spokane, WA – 175 miles (282 km)
- Seattle, WA – 180 miles (290 km)
Top Attractions in Moses Lake, WA
- Moses Lake – A large freshwater lake offering boating, fishing, swimming, kayaking, and other water-based recreation.
- Potholes State Park – A nearby state park with camping, boating, fishing, swimming, and access to the Potholes Reservoir.
- Surf 'n Slide Water Park – A seasonal water park on the shore of Moses Lake with slides, pools, and family recreation.
- Grant County Historical Museum – A local museum preserving the history of Grant County and the Columbia Basin.
- Blue Heron Park – A waterfront community park with walking paths, picnic areas, and views across Moses Lake.
- Sand Dunes Recreation Area – A nearby area of dunes and dry landscapes popular for off-road recreation and outdoor exploration.
- Japanese Peace Garden – A landscaped garden in downtown Moses Lake created as a symbol of friendship and peace.
- McCosh Park – A waterfront park with swimming areas, trails, playgrounds, and community recreation facilities.
Airports Near Moses Lake, WA
- Grant County International Airport (MWH) – 5 miles
- Wenatchee Regional Airport (EAT) – 80 miles
- Tri-Cities Airport (PSC) – 90 miles
- Yakima Air Terminal (YKM) – 108 miles
- Pangborn Memorial Airport (EAT) – 80 miles
Sources:
Population and area data sourced from the United States Census Bureau (2020 Census). General city information referenced from the official Moses Lake city website and local government records.
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