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zipcodes.pro — CITY/WA/CUSTER

Custer ZIP code, Washington

The ZIP code for Custer, WA is 98240.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
477

Mail addressed to Custer uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Custer in numbers

About 477 people live in Custer, in 187 households. The median household income is $93,598 a year, 5% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $527,600 (7% below the Washington median). The median age is 34.8; 20.8% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 21 minutes.

Population477Custer477
Households187Custer187
Median age34.8Custer34.8Washington38.3US 38.9
Median household income$93,598Custer$93,598Washington$98,141US $80,734
Median home value$527,600Custer$527,600Washington$564,600US $332,700
Bachelor's degree or higher20.8%Custer20.8%Washington39.6%US 35.7%
Mean commute20.9 minCuster20.9 minWashington26.6 minUS 26.4 min
Population density213 / sq miCuster213 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Custer CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Custer

ZIP codes with the USPS city name Custer
ZIP City Type Population Median income Median home
98240 Custer , WA Standard 3,593 $110,116 $619,700

Other ZIP codes overlapping Custer

These ZIP codes cover part of Custer but are addressed as somewhere else.

ZIP codes overlapping Custer
ZIP City Type Population Median income Median home
98248 Ferndale , WA Standard 28,498 $91,060 $589,600

Map of Custer ZIP codes

98240

The ZIP codes of Custer, WA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Custer

The nearest larger towns are Ferndale (15,999 people, 4.6 mi), Birch Bay (10,837 people, 5.0 mi) and Blaine (6,100 people, 7.2 mi).

Towns near Custer
TownPopulationDistance
Ferndale 15,999 4.6 mi
Birch Bay 10,837 5.0 mi
Blaine 6,100 7.2 mi
Lynden 16,234 8.7 mi
Marietta-Alderwood 3,754 9.4 mi
Everson 3,040 12.9 mi
Bellingham 93,438 13.4 mi
Sudden Valley 6,084 18.7 mi
Peaceful Valley 2,858 22.3 mi
Anacortes 17,966 29.3 mi

More nearby: every ZIP code in Whatcom County · Washington ZIP codes

Cite this page

zipcodes.pro. “Custer, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/custer

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