Moses Lake North is located in eastern Grant County at 47°10′43″N 119°19′23″W(47.178674, -119.323003).
It is bordered to the east by a northern extension of the city limits of Moses Lake, and to the south by the Cascade Valley CDP. The Moses Lake North CDP contains much of the land previously occupied by Larson Air Force Base, including the terminal and runways of Grant County International Airport and former base housing.
Washington State Route 17 runs along the western edge of the CDP, leading south into downtown Moses Lake and northwest 14 miles (23 km) to Ephrata.
According to the United States Census Bureau, the CDP has a total area of 6.1 square miles (15.7 km2), all of it land.