| ZIP Codes: | 2 ZIP Codes (1 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 907 |
| Timezone: | Alaska (GMT -09:00) |
| Local Time: | 2:11:17 PM |
| Population: | 8,418 [See All] |
| FIPS: | 02220 |
| Land Area: | 1,682 sq mi |
| Water Area: | 482 sq mi |
| Coordinates: | 56.5412, -134.8314 |
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8,418 residents live across 2 ZIPs covering 1,682 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 8,987 to 8,418 from 2014 to 2024 — a -6.3% change. 1 ZIPs gained residents, 1 lost.
The borough's wealthiest ZIP 99835 (Sitka, $101,727 median) and poorest ZIP 99836 (Port Alexander, $57,813) are 46.2 miles apart — a 1.8× income gap across local geography.
Median home values vary 3.8× across this borough — from $118,800 in 99836 (Port Alexander) to $450,300 in 99835 (Sitka).
Density varies 3× across the borough — from 5 people/sq mi in 99835 (Sitka) to 14 in 99836 (Port Alexander).
Within Alaska, this is the #11 most populous of 30 boroughs and ranks #13 for median household income .
Weighted by population, the typical household earns about $101,466 across the borough — reflecting what a typical resident sees, not a simple ZIP average.
34.2% of adults age 25+ hold a bachelor's degree or higher (2,106 of 6,162 reporting).
1 Standard delivery, 1 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.
Sitka Borough lost 6.3% of residents between 2014 and 2024.