ZIP code · Napakiak · Alaska · United States
ZIP code 99634 — Napakiak
ZIP code 99634 serves Napakiak, Alaska.
- Postal code
- 99634Single source Value from one source, not cross-checked.
- City
- Napakiak
- County
- Bethel Census Area FIPS 02050
- State
- Alaska
- Country
- United States
- Coordinates
- 60.6967, -161.9519 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 737 (ZCTA, ACS 5-year)
- Population density
- 149 / sq mi
- Land area
- 4.9 sq mi (12.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $36,250
- Per-capita income
- $10,433
- Median age
- 21.6
- Households
- 182
- Housing units
- 194
- Median home value
- $31,900
- Congressional district
- AK At-large (119th Congress)
- USDA hardiness zone
- 4a (-30 to -25 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Anchorage (UTC−9 / UTC−8 DST)
- Area code
- 907Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 99634 with another ZIP · ZIPs within 25 miles · distance from 99634
Nearby localities
Map of ZIP code 99634
Climate — monthly normals
Warmest month Jul (avg high 64°F), coldest Jan (avg low 1°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 13 | 20 | 22 | 37 | 52 | 62 | 64 | 61 | 53 | 38 | 24 | 16 |
| Avg low °F | 1 | 7 | 7 | 21 | 34 | 45 | 49 | 47 | 39 | 26 | 13 | 4 |
| Precip in | 0.8 | 0.9 | 0.7 | 0.8 | 1.2 | 1.8 | 2.6 | 3.4 | 2.9 | 1.8 | 1.8 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: BETHEL AP (7.4 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page