94520 ZIP Code — Concord, CA
Contra Costa County, California
ZIP code 94520 is located in Concord, California, within Contra Costa County. It covers approximately 9.87 square miles and serves a population of 36,699 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 925.
About ZIP code 94520
The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1970s, giving the area an established character. Median home value is $571,400. Renters make up the majority at 65%, typical of denser urban areas.
Median household income is $77,927.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.
Notable community characteristics include Spanish spoken in 26% of households.
36,699
population
9.87
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
94520 ZIP code map
Cities in ZIP code 94520
Below are the cities the US Postal Service accepts for ZIP code 94520. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Concord | Acceptable |
| Concord | Preferred |
Nearby ZIP codes
94529 Concord (1.8 mi)
94519 Concord (2.1 mi)
94518 Concord (3.6 mi)
94523 Pleasant Hill (4.2 mi)
94521 Concord (5.3 mi)
94565 Pittsburg (5.9 mi)
94597 Walnut Creek (6.3 mi)
94597 Walnut Creek (6.3 mi)
94553 Martinez (6.8 mi)
94598 Walnut Creek (7.7 mi)
94596 Walnut Creek (7.8 mi)
94510 Benicia (7.9 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 36,699 |
| Population density | 3,718 / sq mi |
| State FIPS | 06 |
| County FIPS | 013 |
| Geography | |
|---|---|
| Land area | 9.87 sq mi |
| Water area | 0.03 sq mi |
| Latitude | 38.0047 |
| Longitude | -122.0358 |
| 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 | 34.4% | 23.2% | 32.6% |
| $50k – $100k | 34.9% | 25.1% | 27.7% |
| $100k – $200k | 25.7% | 31.3% | 26.4% |
| Over $200k | 5.0% | 20.4% | 13.3% |
Demographics & statistics
36,699
Population
3,718
People per sq mi
34.7
Median age
$77,927
Median household income
$37,388
Per capita income
$571,400
Median home value
$2,028
Median monthly rent
35.4%
Home ownership
12.5%
Poverty rate
5.8%
Unemployment
4,915
Housing units
30.3%
Bachelor's or higher
Age distribution
Male
Female
1,581
Under 5
1,536
934
5–9
907
1,028
10–14
1,000
1,139
15–19
1,107
1,000
20–24
972
3,718
25–34
3,614
2,995
35–44
2,910
2,074
45–54
2,016
1,232
55–59
1,198
886
60–64
862
1,276
65–74
1,241
585
75–84
568
162
85+
158
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 8,224 | 22.4% |
| 18 and over | 28,475 | 77.6% |
| 65 and over | 3,990 | 10.9% |
| Median age | 34.7 years | |
Race & ethnicity
White
27.6%
Hispanic or Latino
27.2%
Other race
19.1%
Two or more races
12.1%
Asian
9.3%
Black or African American
3.6%
American Indian / Alaska Native
1%
Native Hawaiian / Pacific Islander
0.1%
| Group | Count | % |
|---|---|---|
| White | 13,895 | 27.6% |
| Hispanic or Latino | 13,729 | 27.2% |
| Other race | 9,653 | 19.1% |
| Two or more races | 6,094 | 12.1% |
| Asian | 4,690 | 9.3% |
| Black or African American | 1,814 | 3.6% |
| American Indian / Alaska Native | 485 | 1% |
| Native Hawaiian / Pacific Islander | 68 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 34.4% | 23.2% | 32.6% |
| $50k – $100k | 34.9% | 25.1% | 27.7% |
| $100k – $200k | 25.7% | 31.3% | 26.4% |
| Over $200k | 5.0% | 20.4% | 13.3% |
Under $10k
5.8%
$10k–$15k
3.2%
$15k–$25k
4.8%
$25k–$35k
5.8%
$35k–$50k
9.6%
$50k–$75k
18.3%
$75k–$100k
12.8%
$100k–$150k
20.2%
$150k–$200k
10.0%
$200k+
9.4%
| Range | % of households |
|---|---|
| Under $10k | 5.8% |
| $10k–$15k | 3.2% |
| $15k–$25k | 4.8% |
| $25k–$35k | 5.8% |
| $35k–$50k | 9.6% |
| $50k–$75k | 18.3% |
| $75k–$100k | 12.8% |
| $100k–$150k | 20.2% |
| $150k–$200k | 10.0% |
| $200k+ | 9.4% |
| Median income | $77,927 |
Housing
Home values
Under $50k
3.1%
$50k–$100k
0.4%
$100k–$150k
0.1%
$150k–$200k
2.1%
$200k–$300k
7.6%
$300k–$500k
23.1%
$500k–$1M
59.8%
$1M+
3.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $571,400 |
| Median rent / month | $2,028 |
| Owner occupied | 35.4% |
| Renter occupied | 64.6% |
| Vacant | 1.5% |
| Single-family detached | 34.5% |
| Large apartment buildings | 34.1% |
| Mobile homes | 2.8% |
| Median rooms | 4.1 |
| Avg household size (owned) | 2.76 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 2.5% |
| 2000–2009 | 5.3% |
| 1990–1999 | 6.9% |
| 1980–1989 | 13.6% |
| 1970–1979 | 25.0% |
| 1960–1969 | 17.8% |
| 1950–1959 | 16.9% |
| 1940–1949 | 7.8% |
| 1939 or earlier | 4.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 9.4% |
| 1 bedroom | 24.6% |
| 2 bedrooms | 32.7% |
| 3 bedrooms | 23.5% |
| 4 bedrooms | 7.9% |
| 5+ bedrooms | 1.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 8.8% |
| 1 vehicle | 40.3% |
| 2 vehicles | 35.0% |
| 3 or more | 15.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 53.4% |
| Electricity | 41.4% |
| Propane / LP gas | 1.7% |
| Wood | 0.7% |
| Solar | 0.4% |
| No fuel used | 2.2% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 5,996 | 45.1% |
| Cohabiting couple | 1,055 | 7.9% |
| Male householder, no spouse | 2,557 | 19.2% |
| Female householder, no spouse | 3,700 | 27.8% |
| Households with children under 18 | 4,212 | 31.7% |
| Households with seniors (65+) | 3,026 | 22.7% |
| Average household size | 2.72 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 42.4% | 34.7% |
| Married | 48.7% | 44.7% |
| Separated | 0.8% | 1.0% |
| Widowed | 1.4% | 7.3% |
| Divorced | 6.6% | 12.2% |
Education
Less than 9th grade
10.5%
Some HS, no diploma
7.6%
HS graduate
22.2%
Some college, no degree
22.9%
Associate's degree
6.4%
Bachelor's degree
22.1%
Graduate / professional
8.2%
| Metric | % |
|---|---|
| HS diploma or higher | 81.8% |
| Bachelor's or higher | 30.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 815 | 9.5% |
| Kindergarten | 416 | 4.9% |
| Elementary school | 3,187 | 37.2% |
| High school | 1,870 | 21.9% |
| College / grad school | 2,270 | 26.5% |
Employment
Industry of employment
Education & healthcare
19.7%
Professional & management
18.3%
Arts, food & hospitality
15.4%
Construction
8.9%
Retail trade
8.9%
Other services
6.9%
Manufacturing
5.5%
Finance & real estate
5.4%
Transportation & utilities
4.3%
Public administration
3.0%
Wholesale trade
1.6%
Information
1.5%
Agriculture & mining
0.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 33.7% |
| Service | 31.0% |
| Sales & office | 15.9% |
| Natural resources & construction | 9.5% |
| Production & transportation | 10.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 79.4% |
| Government | 11.4% |
| Self-employed | 9.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 60.2% |
| Carpool | 13.8% |
| Public transit | 9.5% |
| Walk | 3.4% |
| Work from home | 9.4% |
| Other means | 3.7% |
| Avg commute (minutes) | 31.0 |
Poverty
All people
12.5%
Under 18 years
15.1%
18 and over
11.8%
Married-couple families
7.0%
Female-led households
19.3%
Income support
| Source | % of households |
|---|---|
| Social Security | 21.6% |
| Retirement income | 18.5% |
| Supplemental Security | 6.1% |
| Cash public assistance | 2.7% |
| Food stamps / SNAP | 11.4% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 32.4% |
| High blood pressure | 23.3% |
| High cholesterol | 24.6% |
| Diabetes | 8.8% |
| Heart disease | 4.3% |
| Stroke | 2.3% |
| Asthma | 9.8% |
| Arthritis | 17.6% |
| Kidney disease | 2.4% |
| Pulmonary disease | 5.0% |
| Cancer | 4.2% |
| Behavior / access | % |
|---|---|
| Smoking | 13.4% |
| Binge drinking | 19.7% |
| No physical activity | 23.5% |
| Less than 7 hrs sleep | 33.0% |
| Depression | 17.6% |
| Fair or poor health | 16.2% |
| Poor mental health | 15.7% |
| Poor physical health | 10.1% |
| No health insurance | 18.3% |
| Visited doctor (checkup) | 60.9% |
| Visited dentist | 59.6% |
| Cholesterol screening | 86.9% |
| Teeth loss | 11.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 875 | 3.1% |
| Disability | % |
|---|---|
| Any disability | 13.3% |
| Under 18 | 7.4% |
| 18–64 years | 10.7% |
| 65 and over | 41.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 55.5% |
| Public insurance | 42.8% |
| No insurance | 9.8% |
| Uninsured under 19 | 2.2% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 33,582 | 91.5% |
| Spanish | 8,782 | 26.2% |
| Other Indo-European | 6,376 | 19.0% |
| Asian & Pacific Islander | 848 | 2.5% |
| Other languages | 1,090 | 3.2% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 23,752 | 64.7% |
| Born in same state | 23,299 | 63.5% |
| Born in different state | 19,322 | 52.6% |
| Foreign born | 453 | 1.2% |
| Naturalized citizen | 12,947 | 35.3% |
| Not a US citizen | 4,482 | 34.6% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 2,219 | 6% |
| Italian | 2,142 | 5.8% |
| Arab | 753 | 2.1% |
| Polish | 378 | 1% |
| English | 153 | 0.4% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 105 | 0.3% |
| Norwegian | 87 | 0.2% |
| Irish | 42 | 0.1% |
| German | 14 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 36.3% |
| Internet access | 97.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94520
What city is ZIP code 94520 in?
ZIP code 94520 is primarily assigned to Concord, California.
What county is ZIP code 94520 in?
ZIP code 94520 falls within Contra Costa County, California.
Is ZIP code 94520 mostly rentals?
65% of occupied units in ZIP code 94520 are renter-occupied.
Is Spanish widely spoken in ZIP code 94520?
Approximately 26% of households in ZIP code 94520 speak Spanish as a primary language.
What is the typical home value in ZIP code 94520?
The median home value in ZIP code 94520 is $571,400.
What is the population of ZIP code 94520?
ZIP code 94520 has an estimated population of 36,699 residents, with a density of 3,717 people per square mile.
What timezone is ZIP code 94520 in?
ZIP code 94520 observes the PST timezone.