Zip code 94509: Antioch, California

Q: What city is zip code 94509?

94509 is assigned to Antioch, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 94509 in?

94509 is in Contra Costa County, California.

Q: What is the population of 94509?

About 70,090 people live in 94509, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 94509?

The median household income in 94509 is $86,196.

Q: What zip codes are near 94509?

The closest zip codes to 94509 are 94531, 94565, 94561, 94517, 94513.

Residential delivery areaContra Costa CountyPacific Time

Population

70,090

Median household income

$86K

U.S. $81K

Median home value

$584K

U.S. $333K

Median rent

$2,062/mo

U.S. $1,413

Median age

38.1

U.S. 38.9

Land area

17 sq mi

4,018 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 94509

94509 is an urban zip code in Antioch, California (Contra Costa County), covering 17 sq mi of land. About 70,090 people live here, or 4,018 per square mile. The median resident is 38.1 years old, compared with 38.9 nationally.

The median household earns $86,196 a year, close to the national median of $80,734. 13.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $584,100, or 6.8 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 58% of occupied homes are lived in by their owners, and renters pay a median of $2,062 a month.

18% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 40.5 minutes each way, and 9% of workers work from home. The most common jobs among working residents are in healthcare; construction and repair; and office and administrative support. 44% of households speak a language other than English at home, most often Spanish.

How 94509 compares

Sorted from highest to lowest national percentile

Average commute40.5 min
97th
WeaknessU.S. 26.4 min · CA 28.7 min101st of 1,584 in CA
Diversity index72.2
96th
U.S. 61.4 · CA 69.790th of 1,688 in CA
Population70,090
94th
U.S. 334,922,499 · CA 39,287,37760th of 1,688 in CA
Rent-burdened renters64%
91st
WeaknessU.S. 51.1% · CA 55.3%295th of 1,610 in CA
Median gross rent$2,062
86th
U.S. $1,413 · CA $2,036622nd of 1,464 in CA
Unemployment rate7.6%
84th
WeaknessU.S. 5.2% · CA 6.6%541st of 1,681 in CA
Median home value$584,100
81st
U.S. $332,700 · CA $734,700927th of 1,586 in CA
Foreign-born residents24.8%
81st
U.S. 14.1% · CA 27%616th of 1,688 in CA
Healthcare workers12%
81st
U.S. 9.7% · CA 9.4%285th of 1,678 in CA
Broadband access95.1%
77th
U.S. 91% · CA 93.5%567th of 1,662 in CA
Population density4,018/sq mi
75th
U.S. 95/sq mi · CA 252/sq mi534th of 1,688 in CA
Self-employed workers10.9%
68th
U.S. 10% · CA 11.4%899th of 1,678 in CA
Poverty rate13.4%
63rd
U.S. 12.5% · CA 12%608th of 1,666 in CA
Residents under 1823.4%
62nd
U.S. 22% · CA 22%528th of 1,688 in CA
Uninsured rate8.1%
60th
U.S. 8.4% · CA 6.6%458th of 1,675 in CA
Median household income$86,196
58th
U.S. $80,734 · CA $99,122912th of 1,575 in CA
Government workers14.2%
54th
U.S. 14.5% · CA 14.8%932nd of 1,678 in CA
Income inequality (Gini)0.437
52nd
U.S. 0.483 · CA 0.489850th of 1,651 in CA
Median earnings per worker$47,151
47th
U.S. $49,666 · CA $52,643963rd of 1,658 in CA
Veterans5.4%
44th
U.S. 6.2% · CA 4.3%627th of 1,686 in CA
Median age38.1
43rd
U.S. 38.9 · CA 37.9999th of 1,687 in CA
Per capita income$37,545
42nd
U.S. $44,673 · CA $49,5131,044th of 1,685 in CA
Residents 65 and older15.3%
40th
U.S. 17.2% · CA 15.7%981st of 1,688 in CA
Homeownership rate58%
29th
U.S. 65.2% · CA 55.9%1,002nd of 1,662 in CA
Work from home9.2%
29th
U.S. 15.1% · CA 17.2%1,223rd of 1,680 in CA
Tech workers1.8%
29th
U.S. 3.8% · CA 4.4%992nd of 1,678 in CA
Housing vacancy3.7%
18th
U.S. 10.1% · CA 7.5%1,299th of 1,664 in CA
Bachelor's degree or higher18.3%
17th
WeaknessU.S. 35.7% · CA 37.1%1,261st of 1,687 in CA

Measure	94509	Contra Costa	CA	U.S.	National percentile	Rank in CA
Average commuteWeakness	40.5 min	35.3 min	28.7 min	26.4 min	97th	101st of 1,584
Diversity index	72.2	73.3	69.7	61.4	96th	90th of 1,688
Population	70,090	1,165,012	39,287,377	334,922,499	94th	60th of 1,688
Rent-burdened rentersWeakness	64%	56.1%	55.3%	51.1%	91st	295th of 1,610
Median gross rent	$2,062	$2,375	$2,036	$1,413	86th	622nd of 1,464
Unemployment rateWeakness	7.6%	6.5%	6.6%	5.2%	84th	541st of 1,681
Median home value	$584,100	$866,800	$734,700	$332,700	81st	927th of 1,586
Foreign-born residents	24.8%	26.6%	27%	14.1%	81st	616th of 1,688
Healthcare workers	12%	9.2%	9.4%	9.7%	81st	285th of 1,678
Broadband access	95.1%	95.6%	93.5%	91%	77th	567th of 1,662
Population density	4,018/sq mi	1,625/sq mi	252/sq mi	95/sq mi	75th	534th of 1,688
Self-employed workers	10.9%	11.4%	11.4%	10%	68th	899th of 1,678
Poverty rate	13.4%	8.4%	12%	12.5%	63rd	608th of 1,666
Residents under 18	23.4%	22%	22%	22%	62nd	528th of 1,688
Uninsured rate	8.1%	4.6%	6.6%	8.4%	60th	458th of 1,675
Median household income	$86,196	$127,229	$99,122	$80,734	58th	912th of 1,575
Government workers	14.2%	14.6%	14.8%	14.5%	54th	932nd of 1,678
Income inequality (Gini)	0.437	0.471	0.489	0.483	52nd	850th of 1,651
Median earnings per worker	$47,151	$67,204	$52,643	$49,666	47th	963rd of 1,658
Veterans	5.4%	4.2%	4.3%	6.2%	44th	627th of 1,686
Median age	38.1	40.5	37.9	38.9	43rd	999th of 1,687
Per capita income	$37,545	$62,927	$49,513	$44,673	42nd	1,044th of 1,685
Residents 65 and older	15.3%	17.1%	15.7%	17.2%	40th	981st of 1,688
Homeownership rate	58%	68%	55.9%	65.2%	29th	1,002nd of 1,662
Work from home	9.2%	21.3%	17.2%	15.1%	29th	1,223rd of 1,680
Tech workers	1.8%	5.3%	4.4%	3.8%	29th	992nd of 1,678
Housing vacancy	3.7%	3.5%	7.5%	10.1%	18th	1,299th of 1,664
Bachelor's degree or higherWeakness	18.3%	45.2%	37.1%	35.7%	17th	1,261st of 1,687

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

17%

5–17

18–24

13%

25–34

14%

35–44

12%

45–54

13%

55–64

10%

65–74

75+

Median age

38.1

Under 18

23.4%

65 and over

15.3%

Race and ethnicity

White24%
Black14%
Hispanic44%
Asian9%
Native American0.6%
Pacific Islander2%
Other0.3%
Multiracial7%

Diversity index

72.2

U.S. 61.4

Foreign-born

24.8%

U.S. 14.1%

Born in state

62%

Language spoken at home (households)

English only

56%

Spanish

31%

Other Indo-European

Asian / Pacific

Other

0.4%

Households

Households: 23,476
Average household size: 3
Family households: 73.2%
Married couples: 45.5%
Living alone: 19.3%
Veterans (of adults): 5.4%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

12%

$25–50k

17%

$50–75k

16%

$75–100k

13%

$100–150k

18%

$150–200k

11%

$200k+

13%

Median household income

94509

$86,196

Contra Costa Co.

$127,229

California

$99,122

United States

$80,734

Per capita income

$37,545

U.S. $44,673

Poverty rate

13.4%

U.S. 12.5%

Households earning $150K+

24%

U.S. 23%

Income inequality (Gini)

0.437

U.S. 0.483

Housing

Median home value

94509

$584,100

Contra Costa Co.

$866,800

California

$734,700

United States

$332,700

Median gross rent

94509

$2,062

Contra Costa Co.

$2,375

California

$2,036

United States

$1,413

Types of housing

Single-family

78%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

0.1%

Housing units: 24,390
Owner-occupied: 58%
Vacant: 3.7%
Median year built: 1975
Median rooms: 5.4
Renters paying 30%+ of income: 64%
Renters paying 50%+ of income: 33.2%
Home value to income: 6.8× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

66%

Carpooled

17%

Transit

Walked

Bicycle

0.2%

Worked from home

Other

Commute time (one way)

<10 min

10–19

22%

20–29

11%

30–44

16%

45–59

14%

60+

29%

Average commute

40.5 min

U.S. 26.4 min

Unemployment

7.6%

U.S. 5.2%

In labor force

64.2%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

12%

Construction and repair

11%

Office and admin

11%

Cleaning and personal care

10%

Management

10%

Sales

Transportation and moving

Food service

Production

Education

Business and finance

Police and fire

Legal and social services

Engineering and science

Computer and math

Arts, media and sports

Farming, fishing and forestry

0.3%

Industries

Health care and social assistance

17%

Retail

12%

Construction

11%

Restaurants and hotels

Admin, support and management

Transportation, warehousing and utilities

Education

Manufacturing

Professional and technical services

Other services

Public administration

Finance, insurance and real estate

Arts and recreation

Wholesale

Information

0.9%

Agriculture and mining

0.5%

Median earnings per worker

$47,151

U.S. $49,666

Self-employed

10.9%

U.S. 10%

Government workers

14.2%

U.S. 14.5%

Nonprofit workers

6.8%

U.S. 8.8%

Median earnings by type of work

Type of work	94509	U.S.
Management, business, science and arts	$73,050	$74,888
Service	$30,425	$26,804
Sales and office	$46,549	$40,476
Construction and maintenance	$47,377	$49,199
Production and transportation	$41,680	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

18%

High school

31%

Some college

25%

Associate's

Bachelor's

14%

Graduate

High school graduate or higher: 82%
Bachelor's degree or higher: 18.3%
Graduate or professional degree: 4.5%
Households with broadband: 95.1%
Cable, fiber or DSL: 77.3%
No internet access: 3.4%
Without health insurance: 8.1%
Limited-English households: 6.8%

Geography

City (USPS): Antioch
State: California
County: Contra Costa County
Center point: 37.9920° N, 121.8126° W
Land area: 17 sq mi
Water area: 0.2 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Antioch86% of zip
Pittsburg2% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 94509

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
94531	Antioch, CA	3.1 mi	46,387	$120,927	$701,600
94565	Pittsburg, CA	6.4 mi	100,488	$95,556	$583,800
94561	Oakley, CA	6.6 mi	46,368	$134,678	$659,800
94517	Clayton, CA	8.2 mi	12,316	$168,921	$1,032,100
94513	Brentwood, CA	8.3 mi	69,755	$142,223	$837,800
94527	Concord, CA · PO box	8.3 mi	—	—	—
94548	Knightsen, CA	8.9 mi	832	$189,653	$959,900
94521	Concord, CA	9 mi	41,909	$125,899	$853,200
94512	Birds Landing, CA	9.6 mi	130	—	—
94511	Bethel Island, CA	10 mi	1,864	$74,972	$682,700
94519	Concord, CA	11 mi	19,058	$122,418	$783,700
94571	Rio Vista, CA	11 mi	10,974	$87,740	$490,200

Zip codes like 94509 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 94509

What city is zip code 94509?

94509 is assigned to Antioch, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 94509 in?

94509 is in Contra Costa County, California.

What is the population of 94509?

About 70,090 people live in 94509, according to the Census Bureau's American Community Survey.

What time zone is 94509 in?

94509 is in Pacific Time.

What is the median household income in 94509?

The median household income in 94509 is $86,196.

What zip codes are near 94509?

The closest zip codes to 94509 are 94531, 94565, 94561, 94517, 94513.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 94509, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.