Zip Code 94521
Concord, California — Contra Costa County
📍 ZIP code 94521 is in Concord, Contra Costa County, California.
ZIP code 94521 is located in Concord, Contra Costa County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 41,118. The area code for ZIP code 94521 is 408.
Quick Answer
Zip code 94521 is in Concord, California (Contra Costa County). It has a population of 41,118, median household income of $127,312, and median home value of $823,100.
Population
41,118
Income
$127,312
Home Value
$823,100
Climate
83°F / 42°F
About Zip Code 94521
Zip code 94521 is located in Concord, California, within Contra Costa County. Home to approximately 41,118 residents, this area sits at an elevation of 296 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 408.
The median household income is $127,312 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $823,100, and the cost of living index is 232 (132% above the national average of 100).
Summers average a high of 83°F while winters drop to 42°F. The area receives about 26 in of rain and 1 in of snow annually. The zip code covers 13 square miles of land area.
Key Statistics
41,118
$127,312
$823,100
Pacific (PST/PDT)
408
296 ft
13 sq mi
43
16,083
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Compare With Nearby Zip Codes
| Metric | 94521 | 94518 | 94519 | 94598 | 94565 | 94520 |
|---|---|---|---|---|---|---|
| City | Concord, CA | Concord, CA | Concord, CA | Walnut Creek, CA | Pittsburg, CA | Concord, CA |
| Population | 41,118 | 27,743 | 19,918 | 26,293 | 99,933 | 36,767 |
| Median Income | $127,312 | $111,406 | $123,366 | $188,170 | $95,035 | $79,790 |
| Home Value | $823,100 | $826,500 | $727,600 | $1,307,100 | $563,300 | $572,400 |
| Cost of Living | 232 | 227 | 205 | 250 | 162 | 164 |
| Median Age | 43 | 40.4 | 39.3 | 45.5 | 35 | 34.6 |
Cost of Living
100 = National Average. Concord's cost of living is 132% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
6.5x
Demographics
Zip code 94521 has a population of 41,118 people with a median age of 43. There are 16,083 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Concord (94521) population trend from 2010 to 2024
↓ -25.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
83°F
42°F
26 in
1 in
Concord experiences warm summers with average highs around 83°F. Winters are mild with lows averaging 42°F. The area receives about 1 in of snow per year.
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Housing & Economy
Median Home Value
$823,100
Median Household Income
$127,312
With 16,083 housing units across 13 square miles, 94521 has a housing density of 1,237 units per square mile. The home price-to-income ratio is 6.5x.
Location & Geography
Latitude
37.9560°
Longitude
-121.9562°
Land Area
13 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 94521 (Concord, CA) with distances:
All Zip Codes in Concord, CA
Other zip codes serving Concord:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94521's $127,312. A way to compare Concord 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 94521 (Concord, 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 Concord, California?
Concord, California uses zip code 94521 along with 4 other zip codes.
What county is zip code 94521 in?
Zip code 94521 is located in Contra Costa County, California.
What is the population of zip code 94521?
The population of zip code 94521 is 41,118 with a median age of 43.
Is 94521 in Concord, California?
Yes, zip code 94521 is in Concord, Contra Costa County, California. The area code is 408.
Frequently Asked Questions
What city is zip code 94521 in?
Zip code 94521 is in Concord, California. It is part of Contra Costa County and uses the Pacific (PST/PDT) timezone.
What is zip code 94521?
Zip code 94521 is a U.S. postal code in Concord, California (Contra Costa County). It has a population of 41,118 and covers 13 square miles.
What is the population of zip code 94521?
The population of zip code 94521 (Concord, CA) is 41,118 with a median age of 43. There are approximately 16,083 housing units in this area.
What is the median income in zip code 94521?
The median household income in zip code 94521 (Concord, CA) is $127,312 per year. The cost of living index is 232 (100 = national average).
What is the average home price in zip code 94521?
The median home value in zip code 94521 (Concord, CA) is $823,100. The cost of living index is 232 compared to the national average of 100.
What county is zip code 94521 in?
Zip code 94521 is located in Contra Costa County, California. The primary city is Concord.
What is the area code for zip code 94521?
Zip code 94521 in Concord, CA uses area code 408. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94521 a good place to live?
Zip code 94521 (Concord, CA) has a cost of living index of 232 (100 = national average), a median household income of $127,312, and median home values of $823,100. The median age is 43. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94521?
The cost of living index for zip code 94521 (Concord, CA) is 232, where 100 represents the national average. This area is above the national average. Median home value: $823,100.
What schools serve zip code 94521?
Zip code 94521 in Concord, 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.