ZIP code · Wilseyville · California · United States
ZIP code 95257 — Wilseyville
ZIP code 95257 serves Wilseyville, California.
- Postal code
- 95257Single source Value from one source, not cross-checked.
- City
- Wilseyville
- County
- Calaveras FIPS 06009
- State
- California
- Country
- United States
- Coordinates
- 38.3793, -120.4627 — precision precise (locality)
View on OpenStreetMap - Population
- 427 (ZCTA, ACS 5-year)
- Population density
- 36 / sq mi
- Land area
- 11.8 sq mi (30.5 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $43,001
- Median age
- 58
- Households
- 164
- Housing units
- 284
- Median home value
- $335,500
- Congressional district
- CA-5 (119th Congress)
- USDA hardiness zone
- 8b (15 to 20 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 209 (from the nearest rate centre)Telephone 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 95257 with another ZIP · ZIPs within 25 miles · distance from 95257
Map of ZIP code 95257
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Dec (avg low 30°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 45 | 46 | 49 | 54 | 63 | 73 | 81 | 80 | 74 | 64 | 52 | 44 |
| Avg low °F | 30 | 30 | 32 | 35 | 42 | 49 | 56 | 55 | 51 | 43 | 34 | 30 |
| Precip in | 10.6 | 9.8 | 8.5 | 4.6 | 2.8 | 0.9 | 0.1 | 0.1 | 0.4 | 2.9 | 5.2 | 9.7 |
NOAA 1991–2020 climate normals from the nearest station: CALAVERAS BIG TREES (10.8 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