ZIP code · Nondalton · Alaska · United States
ZIP code 99640 — Nondalton
ZIP code 99640 serves Nondalton, Alaska.
- Postal code
- 99640Single source Value from one source, not cross-checked.
- City
- Nondalton
- County
- Lake and Peninsula FIPS 02164
- State
- Alaska
- Country
- United States
- Coordinates
- 59.9736, -154.8458 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 88 (ZCTA, ACS 5-year)
- Population density
- 0 / sq mi
- Land area
- 2,685.6 sq mi (6,955.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $51,667
- Per-capita income
- $17,566
- Median age
- 35.5
- Households
- 34
- Housing units
- 118
- Median home value
- $137,500
- 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.
- 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 99640 with another ZIP · ZIPs within 25 miles · distance from 99640
Nearby localities
Map of ZIP code 99640
Climate — monthly normals
Warmest month Jul (avg high 65°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 25 | 30 | 32 | 43 | 55 | 62 | 65 | 64 | 56 | 45 | 33 | 28 |
| Avg low °F | 12 | 16 | 16 | 29 | 38 | 45 | 51 | 50 | 43 | 32 | 21 | 15 |
| Precip in | 0.9 | 1.1 | 0.8 | 0.8 | 1.2 | 1.5 | 3.1 | 4.1 | 5.0 | 2.8 | 2.2 | 1.4 |
NOAA 1991–2020 climate normals from the nearest station: ILIAMNA AP (15.7 mi) · NOAA NCEI
Places in ZIP 99640
- 1 places of worship
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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