18 ZIP Code Tabulation Areas in Whatcom County, Washington. The population-weighted median household income is about $82,575, the median home value about $571,138, and 64.8% of occupied homes are owner-occupied.
- 18
- ZIP codes
- 261.7K
- Population
- 53
- Data points
Whatcom County at a glance
- $82,575
- Median household income
- $571,138
- Median home value
- 38.5
- Median age
- 64.8%
- Owner-occupied
- 116,322
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 Whatcom County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 98240 | Custer | 3,593 | 93% | $110,116 |
| 2 | 98264 | Lynden | 23,123 | 68.4% | $103,638 |
| 3 | 98295 | Sumas | 3,279 | 58.4% | $98,965 |
| 4 | 98276 | Nooksack | 1,794 | 85.6% | $97,159 |
| 5 | 98284 | Alger | 27,835 | 73% | $93,006 |
Top 5 Whatcom County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 98225 | Bellingham | 50,216 | 40.3% | $63,941 |
| 2 | 98226 | Bellingham | 46,782 | 62.4% | $79,375 |
| 3 | 98229 | Alger | 33,298 | 69.7% | $90,945 |
| 4 | 98248 | Birch Bay | 28,498 | 76.7% | $91,060 |
| 5 | 98284 | Alger | 27,835 | 73% | $93,006 |
Top 5 Whatcom County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 98226 | Bellingham | 46,782 | 62.4% | $79,375 | $992.5M |
| 2 | 98229 | Alger | 33,298 | 69.7% | $90,945 | $869.5M |
| 3 | 98284 | Alger | 27,835 | 73% | $93,006 | $731.7M |
| 4 | 98248 | Birch Bay | 28,498 | 76.7% | $91,060 | $704M |
| 5 | 98264 | Lynden | 23,123 | 68.4% | $103,638 | $587M |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 98225 (Bellingham) at 3,977 people/sq mi. Least dense: 98283 (Marblemount) at 1 people/sq mi.
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