ZIP code · Twin Peaks · California · United States
ZIP code 92391 — Twin Peaks
ZIP code 92391 serves Twin Peaks, California.
- Postal code
- 92391Single source Value from one source, not cross-checked.
- City
- Twin Peaks
- County
- San Bernardino FIPS 06071
- State
- California
- Country
- United States
- Coordinates
- 34.2379, -117.2348 — precision precise (locality)
View on OpenStreetMap - Population
- 2,192 (ZCTA, ACS 5-year)
- Population density
- 1,109 / sq mi
- Land area
- 2 sq mi (5.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $70,987
- Per-capita income
- $28,463
- Median age
- 35.5
- Households
- 955
- Housing units
- 1,546
- Median home value
- $313,100
- Median gross rent
- $1,473 / month
- Congressional district
- CA-23 (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/Los_Angeles (UTC−8 / UTC−7 DST)
Tools: compare 92391 with another ZIP · ZIPs within 25 miles · distance from 92391
Map of ZIP code 92391
Climate — monthly normals
Warmest month Aug (avg high 82°F), coldest Jan (avg low 29°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 45 | 52 | 60 | 67 | 76 | 81 | 82 | 74 | 63 | 52 | 43 |
| Avg low °F | 29 | 30 | 32 | 36 | 41 | 49 | 57 | 57 | 52 | 43 | 34 | 29 |
| Precip in | 8.4 | 9.9 | 5.2 | 2.8 | 1.1 | 0.3 | 0.1 | 0.1 | 0.3 | 2.1 | 2.4 | 5.2 |
NOAA 1991–2020 climate normals from the nearest station: LAKE ARROWHEAD (2.7 mi) · NOAA NCEI
Places in ZIP 92391
- 2 schools
- 2 restaurants & cafés
- 1 parks
- 1 playgrounds
- 1 post offices
- 1 places of worship
- 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