ZIP code · Twentynine Palms · California · United States
ZIP code 92278 — Twentynine Palms
ZIP code 92278 serves Twentynine Palms, California.
- Postal code
- 92278Single source Value from one source, not cross-checked.
- City
- Twentynine Palms
- County
- San Bernardino FIPS 06071
- State
- California
- Country
- United States
- Coordinates
- 34.2380, -116.0604 — precision precise (locality)
View on OpenStreetMap - Population
- 3,839 (ZCTA, ACS 5-year)
- Population density
- 9,748 / sq mi
- Land area
- 0.4 sq mi (1 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $24,296
- Median age
- 21.1
- Households
- 0
- Housing units
- 0
- Congressional district
- CA-23 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °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 92278 with another ZIP · ZIPs within 25 miles · distance from 92278
Map of ZIP code 92278
Climate — monthly normals
Warmest month Jul (avg high 104°F), coldest Dec (avg low 40°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 63 | 67 | 74 | 81 | 90 | 99 | 104 | 103 | 97 | 85 | 72 | 62 |
| Avg low °F | 42 | 44 | 49 | 55 | 63 | 71 | 77 | 76 | 69 | 58 | 47 | 40 |
| Precip in | 0.5 | 0.6 | 0.3 | 0.1 | 0.1 | 0.0 | 0.4 | 0.7 | 0.3 | 0.1 | 0.2 | 0.6 |
NOAA 1991–2020 climate normals from the nearest station: TWENTYNINE PALMS (7.7 mi) · NOAA NCEI
Places in ZIP 92278
- 3 restaurants & cafés
- 2 bars & pubs
- 2 parks
- 2 gyms & sports centres
- 1 libraries
- 2 places of worship
- 1 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