Zip Code 94803
El Sobrante, California — Contra Costa County
📍 ZIP code 94803 is in El Sobrante, Contra Costa County, California.
ZIP code 94803 is located in El Sobrante, Contra Costa County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 27,588. The area code for ZIP code 94803 is 510.
Quick Answer
Zip code 94803 is in El Sobrante, California (Contra Costa County). It has a population of 27,588, median household income of $116,075, and median home value of $729,000.
Population
27,588
Income
$116,075
Home Value
$729,000
Climate
71°F / 44°F
About Zip Code 94803
Zip code 94803 is located in El Sobrante, California, within Contra Costa County. Home to approximately 27,588 residents, this area sits at an elevation of 183 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 510.
The median household income is $116,075 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $729,000, and the cost of living index is 209 (109% above the national average of 100).
Summers average a high of 71°F while winters drop to 44°F. The area receives about 24 in of rain annually. The zip code covers 11.7 square miles of land area.
Key Statistics
27,588
$116,075
$729,000
Pacific (PST/PDT)
510
183 ft
11.7 sq mi
43.2
10,038
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Compare With Nearby Zip Codes
| Metric | 94803 | 94564 | 94805 | 94530 | 94806 | 94547 |
|---|---|---|---|---|---|---|
| City | El Sobrante, CA | Pinole, CA | San Pablo, CA | El Cerrito, CA | San Pablo, CA | Hercules, CA |
| Population | 27,588 | 18,835 | 15,356 | 26,229 | 61,749 | 26,245 |
| Median Income | $116,075 | $120,833 | $114,191 | $127,731 | $82,818 | $130,583 |
| Home Value | $729,000 | $697,100 | $738,800 | $1,097,300 | $582,000 | $741,200 |
| Cost of Living | 209 | 203 | 205 | 250 | 164 | 215 |
| Median Age | 43.2 | 44.1 | 42.1 | 42.5 | 36.3 | 43.5 |
Cost of Living
100 = National Average. El Sobrante's cost of living is 109% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
6.3x
Demographics
Zip code 94803 has a population of 27,588 people with a median age of 43.2. There are 10,038 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
El Sobrante (94803) population trend from 2010 to 2024
↓ -38.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
71°F
44°F
24 in
0 in
El Sobrante experiences mild summers with average highs around 71°F. Winters are mild with lows averaging 44°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$729,000
Median Household Income
$116,075
With 10,038 housing units across 11.7 square miles, 94803 has a housing density of 858 units per square mile. The home price-to-income ratio is 6.3x.
Location & Geography
Latitude
37.9595°
Longitude
-122.2836°
Land Area
11.7 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 94803 (El Sobrante, CA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94803's $116,075. A way to compare El Sobrante to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 94803 (El Sobrante, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is El Sobrante, California?
El Sobrante, California uses zip code 94803.
What county is zip code 94803 in?
Zip code 94803 is located in Contra Costa County, California.
What is the population of zip code 94803?
The population of zip code 94803 is 27,588 with a median age of 43.2.
Is 94803 in El Sobrante, California?
Yes, zip code 94803 is in El Sobrante, Contra Costa County, California. The area code is 510.
Frequently Asked Questions
What city is zip code 94803 in?
Zip code 94803 is in El Sobrante, California. It is part of Contra Costa County and uses the Pacific (PST/PDT) timezone.
What is zip code 94803?
Zip code 94803 is a U.S. postal code in El Sobrante, California (Contra Costa County). It has a population of 27,588 and covers 11.7 square miles.
What is the population of zip code 94803?
The population of zip code 94803 (El Sobrante, CA) is 27,588 with a median age of 43.2. There are approximately 10,038 housing units in this area.
What is the median income in zip code 94803?
The median household income in zip code 94803 (El Sobrante, CA) is $116,075 per year. The cost of living index is 209 (100 = national average).
What is the average home price in zip code 94803?
The median home value in zip code 94803 (El Sobrante, CA) is $729,000. The cost of living index is 209 compared to the national average of 100.
What county is zip code 94803 in?
Zip code 94803 is located in Contra Costa County, California. The primary city is El Sobrante.
What is the area code for zip code 94803?
Zip code 94803 in El Sobrante, CA uses area code 510. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94803 a good place to live?
Zip code 94803 (El Sobrante, CA) has a cost of living index of 209 (100 = national average), a median household income of $116,075, and median home values of $729,000. The median age is 43.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94803?
The cost of living index for zip code 94803 (El Sobrante, CA) is 209, where 100 represents the national average. This area is above the national average. Median home value: $729,000.
What schools serve zip code 94803?
Zip code 94803 in El Sobrante, California is served by the local school district of Contra Costa County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.