94521 ZIP Code — Concord, CA
Contra Costa County, California
ZIP code 94521 is located in Concord, California, within Contra Costa County. It covers approximately 9.68 square miles and serves a population of 41,092 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 925.
About ZIP code 94521
The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $778,300. Owner-occupancy sits near the national average at 74%.
Median household income is $121,368. The poverty rate of 6% is below the national average. 34% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 34 minutes is near the national average.
Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.
41,092
population
9.68
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
94521 ZIP code map
Cities in ZIP code 94521
Below are the cities the US Postal Service accepts for ZIP code 94521. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Concord | Preferred |
Nearby ZIP codes
94519 Concord (3.2 mi)
94565 Pittsburg (3.3 mi)
94518 Concord (3.9 mi)
94529 Concord (4.3 mi)
94598 Walnut Creek (5 mi)
94520 Concord (5.3 mi)
94517 Clayton (6.6 mi)
94596 Walnut Creek (6.8 mi)
94523 Pleasant Hill (6.9 mi)
94597 Walnut Creek (7.4 mi)
94597 Walnut Creek (7.4 mi)
94507 Alamo (8 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 41,092 |
| Population density | 4,245 / sq mi |
| State FIPS | 06 |
| County FIPS | 013 |
| Geography | |
|---|---|
| Land area | 9.68 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 37.9655 |
| Longitude | -121.9527 |
| Timezone | Pacific (PT) |
| Area code | 925 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 21.9% | 23.2% | 32.6% |
| $50k – $100k | 25.5% | 25.1% | 27.7% |
| $100k – $200k | 36.0% | 31.3% | 26.4% |
| Over $200k | 16.6% | 20.4% | 13.3% |
Demographics & statistics
41,092
Population
4,245
People per sq mi
43.1
Median age
$121,368
Median household income
$55,235
Per capita income
$778,300
Median home value
$2,284
Median monthly rent
74.3%
Home ownership
6.1%
Poverty rate
5.6%
Unemployment
11,932
Housing units
41.1%
Bachelor's or higher
Age distribution
Male
Female
1,146
Under 5
1,202
1,023
5–9
1,073
951
10–14
996
1,010
15–19
1,059
1,054
20–24
1,104
2,645
25–34
2,773
2,790
35–44
2,924
2,614
45–54
2,740
1,436
55–59
1,506
1,573
60–64
1,649
2,357
65–74
2,470
1,030
75–84
1,080
433
85+
454
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 7,519 | 18.3% |
| 18 and over | 33,573 | 81.7% |
| 65 and over | 7,824 | 19.0% |
| Median age | 43.1 years | |
Race & ethnicity
White
53%
Asian
13.2%
Two or more races
12.8%
Hispanic or Latino
11.8%
Other race
4.7%
Black or African American
3.7%
American Indian / Alaska Native
0.5%
Native Hawaiian / Pacific Islander
0.3%
| Group | Count | % |
|---|---|---|
| White | 24,684 | 53% |
| Asian | 6,133 | 13.2% |
| Two or more races | 5,959 | 12.8% |
| Hispanic or Latino | 5,520 | 11.8% |
| Other race | 2,180 | 4.7% |
| Black or African American | 1,744 | 3.7% |
| American Indian / Alaska Native | 234 | 0.5% |
| Native Hawaiian / Pacific Islander | 158 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 21.9% | 23.2% | 32.6% |
| $50k – $100k | 25.5% | 25.1% | 27.7% |
| $100k – $200k | 36.0% | 31.3% | 26.4% |
| Over $200k | 16.6% | 20.4% | 13.3% |
Under $10k
3.5%
$10k–$15k
2.6%
$15k–$25k
3.0%
$25k–$35k
3.4%
$35k–$50k
6.0%
$50k–$75k
10.8%
$75k–$100k
8.9%
$100k–$150k
23.2%
$150k–$200k
15.6%
$200k+
23.1%
| Range | % of households |
|---|---|
| Under $10k | 3.5% |
| $10k–$15k | 2.6% |
| $15k–$25k | 3.0% |
| $25k–$35k | 3.4% |
| $35k–$50k | 6.0% |
| $50k–$75k | 10.8% |
| $75k–$100k | 8.9% |
| $100k–$150k | 23.2% |
| $150k–$200k | 15.6% |
| $200k+ | 23.1% |
| Median income | $121,368 |
Housing
Home values
Under $50k
0.2%
$50k–$100k
1.0%
$100k–$150k
0.1%
$150k–$200k
0.2%
$200k–$300k
1.8%
$300k–$500k
16.6%
$500k–$1M
63.6%
$1M+
16.6%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $778,300 |
| Median rent / month | $2,284 |
| Owner occupied | 74.3% |
| Renter occupied | 25.7% |
| Vacant | 2.6% |
| Single-family detached | 67.0% |
| Large apartment buildings | 9.1% |
| Mobile homes | 0.0% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.65 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 0.9% |
| 2000–2009 | 5.9% |
| 1990–1999 | 8.1% |
| 1980–1989 | 15.2% |
| 1970–1979 | 31.0% |
| 1960–1969 | 22.0% |
| 1950–1959 | 14.2% |
| 1940–1949 | 1.5% |
| 1939 or earlier | 1.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 7.7% |
| 2 bedrooms | 20.5% |
| 3 bedrooms | 35.9% |
| 4 bedrooms | 28.0% |
| 5+ bedrooms | 6.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.3% |
| 1 vehicle | 27.7% |
| 2 vehicles | 39.6% |
| 3 or more | 28.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 66.0% |
| Electricity | 30.6% |
| Propane / LP gas | 1.1% |
| Wood | 0.2% |
| Solar | 1.6% |
| No fuel used | 0.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 8,380 | 54.0% |
| Cohabiting couple | 708 | 4.6% |
| Male householder, no spouse | 2,311 | 14.9% |
| Female householder, no spouse | 4,114 | 26.5% |
| Households with children under 18 | 4,419 | 28.5% |
| Households with seniors (65+) | 5,559 | 35.8% |
| Average household size | 2.63 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 32.7% | 28.1% |
| Married | 56.0% | 49.3% |
| Separated | 0.8% | 1.8% |
| Widowed | 3.6% | 9.1% |
| Divorced | 6.9% | 11.6% |
Education
Less than 9th grade
3.2%
Some HS, no diploma
3.2%
HS graduate
18.9%
Some college, no degree
22.0%
Associate's degree
11.6%
Bachelor's degree
27.1%
Graduate / professional
13.9%
| Metric | % |
|---|---|
| HS diploma or higher | 93.6% |
| Bachelor's or higher | 41.1% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 574 | 6.4% |
| Kindergarten | 502 | 5.6% |
| Elementary school | 2,924 | 32.5% |
| High school | 1,849 | 20.5% |
| College / grad school | 3,158 | 35.1% |
Employment
Industry of employment
Education & healthcare
25.9%
Professional & management
16.6%
Retail trade
9.6%
Construction
9.5%
Finance & real estate
7.5%
Arts, food & hospitality
7.5%
Other services
4.9%
Transportation & utilities
4.7%
Public administration
4.7%
Manufacturing
4.4%
Information
2.2%
Wholesale trade
2.1%
Agriculture & mining
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 49.4% |
| Service | 14.3% |
| Sales & office | 22.0% |
| Natural resources & construction | 7.0% |
| Production & transportation | 7.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.5% |
| Government | 17.1% |
| Self-employed | 7.4% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 65.3% |
| Carpool | 7.7% |
| Public transit | 7.1% |
| Walk | 1.5% |
| Work from home | 15.6% |
| Other means | 3.0% |
| Avg commute (minutes) | 33.8 |
Poverty
All people
6.1%
Under 18 years
6.7%
18 and over
5.9%
Married-couple families
2.7%
Female-led households
10.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 34.1% |
| Retirement income | 28.7% |
| Supplemental Security | 4.8% |
| Cash public assistance | 2.3% |
| Food stamps / SNAP | 5.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 27.6% |
| High blood pressure | 26.0% |
| High cholesterol | 29.5% |
| Diabetes | 8.6% |
| Heart disease | 5.0% |
| Stroke | 2.4% |
| Asthma | 9.3% |
| Arthritis | 21.5% |
| Kidney disease | 2.5% |
| Pulmonary disease | 5.1% |
| Cancer | 6.2% |
| Behavior / access | % |
|---|---|
| Smoking | 10.2% |
| Binge drinking | 18.4% |
| No physical activity | 17.2% |
| Less than 7 hrs sleep | 30.1% |
| Depression | 16.8% |
| Fair or poor health | 11.4% |
| Poor mental health | 13.1% |
| Poor physical health | 8.6% |
| No health insurance | 8.6% |
| Visited doctor (checkup) | 65.5% |
| Visited dentist | 71.9% |
| Cholesterol screening | 92.2% |
| Teeth loss | 7.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 2,035 | 6.1% |
| Disability | % |
|---|---|
| Any disability | 12.9% |
| Under 18 | 5.0% |
| 18–64 years | 9.6% |
| 65 and over | 31.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 79.1% |
| Public insurance | 33.4% |
| No insurance | 2.7% |
| Uninsured under 19 | 0.9% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 38,744 | 94.3% |
| Spanish | 3,264 | 8.4% |
| Other Indo-European | 1,340 | 3.5% |
| Asian & Pacific Islander | 526 | 1.4% |
| Other languages | 1,259 | 3.2% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 33,576 | 81.7% |
| Born in same state | 33,098 | 80.5% |
| Born in different state | 26,397 | 64.2% |
| Foreign born | 478 | 1.2% |
| Naturalized citizen | 7,516 | 18.3% |
| Not a US citizen | 5,111 | 68.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 4,631 | 11.3% |
| Italian | 4,581 | 11.1% |
| Arab | 966 | 2.4% |
| Polish | 492 | 1.2% |
| Dutch | 471 | 1.1% |
| Ancestry | Count | % |
|---|---|---|
| English | 358 | 0.9% |
| Irish | 238 | 0.6% |
| German | 114 | 0.3% |
| Norwegian | 45 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.8% |
| Internet access | 96.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94521
What city is ZIP code 94521 in?
ZIP code 94521 is primarily assigned to Concord, California.
What county is ZIP code 94521 in?
ZIP code 94521 falls within Contra Costa County, California.
What is the typical home value in ZIP code 94521?
The median home value in ZIP code 94521 is $778,300.
What is the median household income in ZIP code 94521?
The median household income in ZIP code 94521 is $121,368, above the national median of ~$75,000.
What is the population of ZIP code 94521?
ZIP code 94521 has an estimated population of 41,092 residents, with a density of 4,244 people per square mile.
What timezone is ZIP code 94521 in?
ZIP code 94521 observes the PST timezone.