US ZIP Code
98240

Custer, WA

Whatcom County  ·  Washington

● Active
👥 3,208 Population ↑ 2% since 2019
💰 $106,256 Median HH Income
▲ 39% above avg ↑ 46% since 2019
🎂 37.0 Median Age ↓ 21% since 2019
🏠 $566,400 Median Home Value
▲ 103% above avg ↑ 76% since 2019
🎓 44.4% College Grads
▲ 15% above avg
📊 7.8% Unemployment
▲ 59% above avg ↑ 103% since 2019
ZIP Code Details
ZIP Code98240
CityCuster
StateWashington (WA)
CountyWhatcom County
Area Code360/564
Elevation53 ft
Latitude48.948225
Longitude-122.620684
TimezoneLos Angeles (DST)
FIPS53073
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 50.4% (1,618) Female 49.6% (1,590) ♀

Race & Ethnicity

White: 82.5%Hispanic: 15.3%Other: 2.3%Race
White82.5%
Hispanic15.3%
Other2.3%

Age Breakdown

Under 5
3%
5–17
24%
18–24
5%
25–44
29%
45–64
25%
65+
7%

Key Indicators

Median Age37.0 yrs ↓ 21% since 2019
Avg Household Size2.79
Below Poverty4.6% ▼ 54% below avg
College Grads44.4% ▲ 15% above avg
Unemployment7.8% ▲ 59% above avg
No HS Diploma42 (2%)
HS Graduate585 (27.8%)
Some College224 (10.6%)
Associates318 (15.1%)
Bachelors422 (20.1%)
Graduate Degree513 (24.4%)

Education

No HS: 2%HS Grad: 27.8%Some College: 10.6%Associates: 15.1%Bachelors: 20.1%Graduate: 24.4%Edu
No HS2.0%
HS Grad27.8%
Some College10.6%
Associates15.1%
Bachelors20.1%
Graduate24.4%
Housing & Income

Housing Tenure

Owner: 95.2%Renter: 4.8%Tenure
Owner95.2%
Renter4.8%

Home Value Distribution

Under $50k
3%
$50k–100k
1%
$100k–150k
2%
$200k–300k
11%
$300k–500k
24%
Over $500k
60%

Financials

Median HH Income$106,256 ▲ 39% above avg ↑ 46% since 2019
Median Home Value$566,400 ▲ 103% above avg ↑ 76% since 2019
Home/Income Ratio5.3x (nat avg ~3.5x)
Total Units1,200
Vacant Units55
Avg HH Size2.79

Income Distribution

Under $25k
3%
$25k–50k
7%
$50k–75k
13%
$75k–100k
16%
$100k–150k
41%
$150k–200k
4%
Over $200k
16%
Employment & Commute

How People Get to Work

Drove Alone
85%
Public Transit
0%
Work From Home
15%

Commute Time

Under 15 min
16%
15–30 min
64%
30–45 min
9%
Over 45 min
12%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
3%
1960s–1970s
23%
1980s–1990s
18%
2000+
54%

Summary

Total Units1,200
Vacant55
Owner Occupied95.2%
Renter Occupied4.8%
Avg HH Size2.79
Frequently Asked Questions
ZIP code 98240 is in Custer, WA, in Whatcom County.
ZIP code 98240 is located in Washington (WA).
ZIP code 98240 is in Whatcom County, WA.
ZIP 98240 observes the Los Angeles timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 98240 is 3,208 people (ACS 2023).
The median household income in ZIP code 98240 is $106,256 (ACS 2023).
The median home value in ZIP 98240 is $566,400 (ACS 2023).
About ZIP Code 98240

ZIP code 98240 is located in Custer, Washington, within Whatcom County. With a population of 3,208, this is a sparsely populated ZIP code with a relatively young community — the median age is 37 years. Economically, 98240 is a upper-middle-income ZIP code: the median household income of $106,256 is above the national average.

Real estate in ZIP code 98240 represents a premium housing market. The median home value of $566,400 is more than double the national average. Homeownership is strong here — 95.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 76% since 2019.

The population of 98240 is primarily White (82.45%). Residents are well-educated — 44.4% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 4.6%. Household income has grown by 46% since 2019.

The unemployment rate in 98240 stands at 7.8%, which is significantly above the national average. About 13% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 76%.

Overall, ZIP code 98240 in Custer, WA is characterized as upper-middle-income, well-educated, a relatively young community, and predominantly owner-occupied. With 3,208 residents, a median household income of $106,256, and a median home value of $566,400, it offers a clear picture of life in this part of Washington.