ZIP code · Pioneer · California · United States
ZIP code 95666 — Pioneer
ZIP code 95666 serves Pioneer, California.
- Postal code
- 95666Single source Value from one source, not cross-checked.
- City
- Pioneer
- County
- Amador FIPS 06005
- State
- California
- Country
- United States
- Coordinates
- 38.4319, -120.5719 — precision precise (locality)
View on OpenStreetMap - Population
- 6,089 (ZCTA, ACS 5-year)
- Population density
- 73 / sq mi
- Land area
- 84 sq mi (217.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $79,181
- Per-capita income
- $44,738
- Median age
- 55.4
- Households
- 2,604
- Housing units
- 3,740
- Median home value
- $347,900
- Median gross rent
- $1,324 / month
- Congressional district
- CA-5 (119th Congress)
- USDA hardiness zone
- 9a (20 to 25 °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
- 209Telephone 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 95666 with another ZIP · ZIPs within 25 miles · distance from 95666
Map of ZIP code 95666
Climate — monthly normals
Warmest month Jul (avg high 93°F), coldest Dec (avg low 39°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 55 | 58 | 62 | 67 | 75 | 86 | 93 | 92 | 87 | 77 | 63 | 55 |
| Avg low °F | 39 | 42 | 42 | 45 | 51 | 57 | 63 | 62 | 60 | 53 | 44 | 39 |
| Precip in | 6.1 | 5.7 | 4.9 | 2.8 | 1.7 | 0.4 | 0.0 | 0.0 | 0.3 | 1.7 | 3.1 | 5.4 |
NOAA 1991–2020 climate normals from the nearest station: SUTTER HILL CDF (13.0 mi) · NOAA NCEI
Places in ZIP 95666
- 1 schools
- 1 supermarkets
- 5 restaurants & cafés
- 1 post offices
- 1 places of worship
- 2 gas stations
- 3 police & fire stations
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