Home > WA > Grant County > Moses Lake > Zip 98837

Zip Code 98837 — Moses Lake, WA

ZIP Code 98837 is associated with Moses Lake, WA, in Grant County. The listed population estimate is 49,455; estimated density is 39.3 people per square mile. Among records with population estimates, it ranks #1 of 14 in Grant County and #25 of 597 in WA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (47.148090, -119.316300)

Data MetricLocal Statistic
Postal / Zip Code98837
Primary CityMoses Lake
State / ProvinceWA
CountyGrant
Total Population49,455
Population Density39.3 people/sq mi
TimezoneAmerica/Los_Angeles

How 98837 Compares

MetricZIP 98837Grant County recordsWA records
Population estimate49,45597,918 (sum)7,816,021 (sum)
Population Density39.3 /sq mi----
County population rank#1 of 14----
State population rank#25 of 597----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in WA

ZIP CodeCityDistancePopulation estimate
ZIP 98857Warden17.2 mi4,062
ZIP 98832Marlin19.5 mi87
ZIP 98851Soap Lake19.6 mi4,437
ZIP 98823Ephrata19.9 mi12,188
ZIP 98853Stratford20.7 mi6

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →