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Zip Code 99140 — Keller, WA

ZIP Code 99140 is associated with Keller, WA, in Ferry County. The listed population estimate is 486; estimated density is 0.4 people per square mile. Among records with population estimates, it ranks #5 of 9 in Ferry County and #486 of 597 in WA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (48.135000, -118.687220)

Data MetricLocal Statistic
Postal / Zip Code99140
Primary CityKeller
State / ProvinceWA
CountyFerry
Total Population486
Population Density0.4 people/sq mi
TimezoneAmerica/Los_Angeles

How 99140 Compares

MetricZIP 99140Ferry County recordsWA records
Population estimate48611,915 (sum)7,816,021 (sum)
Population Density0.4 /sq mi----
County population rank#5 of 9----
State population rank#486 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 99116Coulee Dam14.0 mi1,786
ZIP 99138Inchelium15.3 mi1,223
ZIP 99124Elmer City15.3 mi326
ZIP 99155Nespelem16.0 mi1,009
ZIP 99133Grand Coulee21.3 mi1,115

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 →