ZIP code 98240: Custer, WA
98240 is a ZIP code in Custer, Washington, mainly in Whatcom County, part of the Bellingham, WA metro area. About 3,593 people live here.
- Population
- 3,593
- Median household income
- $110,116
- Typical home value
- $654,900+0.9% in 12 months
- Median rent
- —gross, per month
- Median age
- 36.9
- Homeowners
- 93%of occupied homes
Shaded: ZIP code 98240's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 98240 details
| City | Custer |
|---|---|
| State | Washington |
| County | Whatcom County |
| Metro area | Bellingham, WA |
| Time zone | Pacific Time (UTC−8), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 22.3 sq mi, plus 0 sq mi of water |
| Population density | 161 people per sq mi |
| Bachelor's degree or higher | 23.6% of adults 25+ |
| Average commute | 19.8 minutes |
| Center coordinates | 48.94823, -122.62068 |
ZIP codes near 98240
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 98230 | Blaine, WA | 3.8 mi | 18,744 |
| 98248 | Ferndale, WA | 5.7 mi | 28,498 |
| 98231 | Blaine, WA | 6.5 mi | — |
| 98264 | Lynden, WA | 7.5 mi | 23,123 |
| 98226 | Bellingham, WA | 13.5 mi | 46,782 |
| 98276 | Nooksack, WA | 13.7 mi | 1,794 |
| 98225 | Bellingham, WA | 14.1 mi | 50,216 |
| 98227 | Bellingham, WA | 14.4 mi | — |
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 98240?
A typical home in ZIP code 98240 is worth about $654,900 (Zillow Home Value Index). The median household here earns $110,116 a year. See what buying here would cost per month, with Washington average taxes and insurance filled in.
Monthly payment for a $654,900 homeWhat can a $110,116 income afford?Rental property numbers
About ZIP code 98240
What city is ZIP code 98240?
ZIP code 98240 is in Custer, WA, in Whatcom County.
What county is ZIP code 98240 in?
98240 is mainly in Whatcom County, Washington.
What is the population of ZIP code 98240?
About 3,593 people live in ZIP code 98240, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 98240 in?
98240 is in Pacific Time (UTC−8). It observes daylight saving time.