ZIP code · Coffman Cove · Alaska · United States
ZIP code 99918 — Coffman Cove
ZIP code 99918 serves Coffman Cove, Alaska.
- Postal code
- 99918Single source Value from one source, not cross-checked.
- City
- Coffman Cove
- County
- Prince of Wales-Hyder FIPS 02198
- State
- Alaska
- Country
- United States
- Coordinates
- 55.9524, -132.7503 — precision precise (locality)
View on OpenStreetMap - Population
- 308 (ZCTA, ACS 5-year)
- Population density
- 9 / sq mi
- Land area
- 35.8 sq mi (92.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $48,611
- Per-capita income
- $33,717
- Median age
- 57
- Households
- 136
- Housing units
- 242
- Median home value
- $375,000
- Congressional district
- AK At-large (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Juneau (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 99918 with another ZIP · ZIPs within 25 miles · distance from 99918
Nearby localities
Map of ZIP code 99918
Climate — monthly normals
Warmest month Jul (avg high 66°F), coldest Jan (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 40 | 43 | 50 | 57 | 63 | 66 | 65 | 59 | 51 | 42 | 38 |
| Avg low °F | 28 | 28 | 30 | 34 | 40 | 46 | 51 | 50 | 45 | 38 | 32 | 30 |
| Precip in | 8.2 | 5.5 | 6.3 | 5.1 | 3.5 | 4.1 | 5.3 | 7.0 | 8.6 | 12.1 | 10.5 | 9.1 |
NOAA 1991–2020 climate normals from the nearest station: THORNE BAY (20.0 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