ZIP code · El Sobrante · California · United States
ZIP code 94803 — El Sobrante
ZIP code 94803 serves El Sobrante, California.
- Postal code
- 94803Single source Value from one source, not cross-checked.
- City
- El Sobrante
- County
- Contra Costa FIPS 06013
- State
- California
- Country
- United States
- Coordinates
- 37.9693, -122.2901 — precision precise (locality)
View on OpenStreetMap - Population
- 27,588 (ZCTA, ACS 5-year)
- Population density
- 2,152 / sq mi
- Land area
- 12.8 sq mi (33.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $116,075
- Per-capita income
- $52,895
- Median age
- 43.2
- Households
- 9,500
- Housing units
- 10,038
- Median home value
- $729,000
- Median gross rent
- $2,295 / month
- Congressional district
- CA-8 (119th Congress)
- USDA hardiness zone
- 10a (30 to 35 °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 94803 with another ZIP · ZIPs within 25 miles · distance from 94803
Map of ZIP code 94803
Climate — monthly normals
Warmest month Sep (avg high 75°F), coldest Jan (avg low 44°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 58 | 61 | 64 | 67 | 69 | 72 | 71 | 72 | 75 | 73 | 65 | 58 |
| Avg low °F | 44 | 46 | 47 | 49 | 52 | 54 | 55 | 56 | 56 | 54 | 49 | 44 |
| Precip in | 4.8 | 4.8 | 3.2 | 1.6 | 0.7 | 0.3 | 0.0 | 0.1 | 0.0 | 1.4 | 2.7 | 4.9 |
NOAA 1991–2020 climate normals from the nearest station: RICHMOND (5.9 mi) · NOAA NCEI
Places in ZIP 94803
- 14 schools
- 1 hospitals & clinics
- 1 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 5 restaurants & cafés
- 4 bars & pubs
- 4 parks
- 9 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 1 post offices
- 8 places of worship
- 2 banks
- 5 gas stations
- 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