| ZIP Codes: | 18 ZIP Codes (15 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 360 / 564 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:14:17 PM |
| Population: | 228,467 [See All] |
| FIPS: | 53073 |
| CBSA: | Bellingham, WA |
| Land Area: | 964 sq mi |
| Water Area: | 54 sq mi |
| Coordinates: | 48.8521, -122.4578 |
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228,467 residents live across 18 ZIPs covering 964 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 203,399 to 228,467 from 2014 to 2024 — a +12.3% change. 11 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 98240 (Custer, $110,116 median) and poorest ZIP 98266 (Maple Falls, $51,361) are 25.6 miles apart — a 2.1× income gap across local geography.
Median home values vary 1.5× across this county — from $421,200 in 98266 (Maple Falls) to $633,500 in 98229 (Bellingham).
Density varies 526× across the county — from 7 people/sq mi in 98244 (Deming) to 3,903 in 98225 (Bellingham).
Educational attainment ranges from 16.4% bachelor's+ in 98266 (Maple Falls) to 53.1% in 98229 (Bellingham) — the breadth of educational profiles across the area.
Within Washington, this is the #9 most populous of 39 counties and ranks #15 for median household income with the #19 fastest decade growth .
Weighted by population, the typical household earns about $82,812 across the county — reflecting what a typical resident sees, not a simple ZIP average.
39.5% of adults age 25+ hold a bachelor's degree or higher (61,702 of 156,294 reporting). The most-educated ZIPs cluster around Bellingham.
15 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 98225 | Bellingham | Standard | 50,216 | $63,941 | 12.9 | 6.8% |
| 98226 | Bellingham | Standard | 46,782 | $79,375 | 106.7 | 12.9% |
| 98229 | Bellingham | Standard | 33,298 | $90,945 | 55.2 | 5.6% |
| 98248 | Ferndale | Standard | 28,498 | $91,060 | 73.2 | 25.3% |
| 98264 | Lynden | Standard | 23,123 | $103,638 | 58.9 | 27.8% |
| 98230 | Blaine | Standard | 18,744 | $86,623 | 43.6 | 16.6% |
| 98247 | Everson | Standard | 9,115 | $88,724 | 67.5 | -12.8% |
| 98266 | Maple Falls | Standard | 4,245 | $51,361 | 50.3 | 5.0% |
| 98240 | Custer | Standard | 3,593 | $110,116 | 22.3 | 25.5% |
| 98295 | Sumas | Standard | 3,279 | $98,965 | 31.2 | 33.9% |
| 98244 | Deming | Standard | 2,994 | $67,159 | 403.3 | 2.8% |
| 98276 | Nooksack | Standard | 1,794 | $97,159 | 0.7 | 187.0% |
| 98281 | Point Roberts | Standard | 1,288 | $78,125 | 4.9 | -2.6% |
| 98262 | Lummi Island | Standard | 957 | $83,000 | 11.1 | -11.3% |
| 98220 | Acme | Standard | 541 | $92,266 | 22.3 | -26.2% |
| 98227 | Bellingham | PO Box | — | — | 0.0 | — |
| 98228 | Bellingham | PO Box | — | — | 0.0 | — |
| 98231 | Blaine | PO Box | — | — | 0.0 | — |