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ZIP code 99138: Inchelium, WA

99138 is a ZIP code in Inchelium, Washington, mainly in Ferry County. About 1,223 people live here.

Population
1,223
Median household income
$50,833
Typical home value
$236,400-1.1% in 12 months
Median rent
$535gross, per month
Median age
44.6
Homeowners
61.5%of occupied homes
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Shaded: ZIP code 99138's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 99138 details

CityInchelium
StateWashington
CountyFerry County
Metro areaNot in a metro or micro area
Time zonePacific Time (UTC−8), observes daylight saving time
TypeStandard (delivery area)
Land area566.6 sq mi, plus 31.2 sq mi of water
Population density2 people per sq mi
Bachelor's degree or higher21.9% of adults 25+
Average commute21.9 minutes
Center coordinates48.23137, -118.39088

Median rent in 99138 by bedrooms

SizeMedian gross rent
2 bedrooms$250/mo
3 bedrooms$575/mo
4 bedrooms$850/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 99138

ZIP codeCityDistancePopulation
99137Hunters, WA13.9 mi495
99131Gifford, WA14.4 mi127
99140Keller, WA14.4 mi486
99167Rice, WA17.2 mi871
99129Fruitland, WA18.7 mi725
99101Addy, WA21.7 mi1,690
99147Lincoln, WA25.9 mi214
99173Springdale, WA27.9 mi1,623

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 99138?

A typical home in ZIP code 99138 is worth about $236,400 (Zillow Home Value Index). The median household here earns $50,833 a year. See what buying here would cost per month, with Washington average taxes and insurance filled in.

Monthly payment for a $236,400 homeWhat can a $50,833 income afford?Rental property numbers

About ZIP code 99138

What city is ZIP code 99138?

ZIP code 99138 is in Inchelium, WA, in Ferry County.

What county is ZIP code 99138 in?

99138 is mainly in Ferry County, Washington.

What is the population of ZIP code 99138?

About 1,223 people live in ZIP code 99138, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 99138 in?

99138 is in Pacific Time (UTC−8). It observes daylight saving time.