Custer, WA ZIP code
The ZIP code for Custer, Washington is 98240. It is in Whatcom County.
- Population in these ZIPs
- 3,593
- Avg. median income
- $110,100population-weighted
- Typical home value
- $654,900population-weighted
- Metro area
- Bellingham, WA
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Custer, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 98240 | 3,593 | $110,116 | $654,900 |
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
Cities near Custer
- Blaine 5 mi
- Ferndale 6 mi
- Lynden 8 mi
- Nooksack 14 mi
- Everson 14 mi
- Bellingham 15 mi
- Lummi Island 18 mi
- Sumas 19 mi
- Point Roberts 20 mi
- Olga 23 mi
- Eastsound 23 mi
- Waldron 25 mi
Frequently asked questions
What is the ZIP code for Custer, WA?
The ZIP code for Custer, WA is 98240.
What county is Custer, Washington in?
Custer ZIP codes are in Whatcom County.