| ZIP Codes: | 7 ZIP Codes (2 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Code: | 907 |
| Timezone: | Alaska (GMT -09:00) |
| Local Time: | 2:11:18 PM |
| Population: | 7,142 [See All] |
| FIPS: | 02240 |
| Land Area: | 16,765 sq mi |
| Water Area: | 302 sq mi |
| Coordinates: | 63.8355, -143.0969 |
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7,142 residents live across 7 ZIPs covering 16,765 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 7,305 to 7,142 from 2014 to 2024 — a -2.2% change. 4 ZIPs gained residents, 2 lost.
The borough's wealthiest ZIP 99737 (Delta Junction, $83,107 median) and poorest ZIP 99764 (Northway, $33,036) are 99.7 miles apart — a 2.5× income gap across local geography.
Median home values vary 5.0× across this borough — from $62,300 in 99738 (Eagle) to $312,600 in 99737 (Delta Junction).
Density varies 115× across the borough — from 0 people/sq mi in 99738 (Eagle) to 2 in 99776 (Tanacross).
Educational attainment ranges from 3.4% bachelor's+ in 99764 (Northway) to 26.5% in 99737 (Delta Junction) — the breadth of educational profiles across the area.
Within Alaska, this is the #14 most populous of 30 boroughs and ranks #27 for median household income .
Weighted by population, the typical household earns about $75,385 across the borough — reflecting what a typical resident sees, not a simple ZIP average.
23.3% of adults age 25+ hold a bachelor's degree or higher (1,120 of 4,807 reporting).
2 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this borough.
A frontier borough — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
One ZIP holds the majority of this borough's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 99737 | Delta Junction | Standard | 4,774 | $83,107 | 5,002.0 | -5.2% |
| 99780 | Tok | Standard | 1,884 | $64,330 | 1,046.1 | 9.3% |
| 99764 | Northway | PO Box | 195 | $33,036 | 2,994.8 | -36.1% |
| 99776 | Tanacross | PO Box | 155 | $53,125 | 77.6 | 0.6% |
| 99738 | Eagle | PO Box | 125 | $40,750 | 7,205.2 | 47.1% |
| 99732 | Chicken | PO Box | 9 | — | 332.8 | — |
| 99731 | Fort Greely | PO Box | — | — | 106.5 | — |