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Antioch, CA

City in Contra Costa County, California. ZIP codes: 94509, 94531.

Population

116,477

Land area

29.2sq mi

People per sq mi

3,993

ZIP codes

2

Antioch and its ZIP codes

Full map

Antioch at a glance

  • Antioch is about 16 times as dense as California as a whole.
  • It is the 54th most populous of 1,570 cities and towns in California.
  • The median household income is $97,465, close to the California median.
  • A typical owner-occupied home is valued at $629,700 (14% below California) and median rent is $2,278 a month.

Local data for Antioch, CA

Counts from official public data

Housing and community stats

Antioch, CA, American Community Survey 2020-2024

Full profile

Median household income

$97,465

Poverty rate

11.4%

Median home value

$629,700

Median rent

$2,278/mo

Homeownership

63.6%

Bachelor's or higher

23.9%

Median age

38.4

Average commute

42.0 min

Largest reported origins and ancestries: Mexican Americans (28,093), Filipino Americans (8,330), German Americans (6,814).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Contra Costa County. PPP loans are for Antioch.

Details

Unemployment rate

5.0%

Aug 2026, -0.2 pts in a year

Average annual pay

$87,200

374,448 jobs, 2025

Income per person

$108,259

BEA, 2024

Federal spending

$7.1B

FY 2026, $6,088 per person

PPP loans

$131M

2,779 loans, 13,197 jobs reported

Contra Costa County economyFederal spendingPPP loans

How people get to work

Antioch, CA, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone65.6%
  • Carpooled14.9%
  • Public transit4.8%
  • Walked0.9%
  • Bicycle0.1%
  • Taxi, ride-hailing, motorcycle or other1.1%
  • Worked from home12.7%

Average one-way commute: 42.0 minutes for people who do not work from home.

Environment and hazard risk

Antioch, CA, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very High

Top: earthquake

Storm events since 1996

472

Countywide, mostly strong wind

Flood insurance policies

2,681

0.9% of homes, county

July high / Jan low

91° / 40°F

12.6 inches of rain a year

Hazards, floods and storm historyCheck a flood zone2 historic places

Health statistics

Share of adults in Antioch, CA, CDC PLACES estimates

All 40 measures

Obesity

32.9%

U.S. 33.3% about the same

Diabetes

12.5%

U.S. 12.1% about the same

Smoking

12.1%

U.S. 12.8% -0.7 pts

Uninsured (18-64)

11.1%

U.S. 11.1% about the same

ZIP codes in Antioch

2 in or overlapping Antioch. Population shown

·

Cities near Antioch

NameDistanceLand area (sq mi)
BrentwoodCity5.3 mi14.9
OakleyCity5.8 mi15.9
PittsburgCity5.8 mi17.7
ClaytonCity7.8 mi3.8
KnightsenCensus-designated place8 mi8.4
Bethel IslandCensus-designated place9.2 mi5.3
Bay PointCensus-designated place9.8 mi6.4
ByronCensus-designated place11 mi6.5
ConcordCity11 mi30.6
Discovery BayCensus-designated place12 mi5.6
North GateCensus-designated place12 mi0.7
BlackhawkCensus-designated place13 mi5.8
DiabloCensus-designated place13 mi1.4
ClydeCensus-designated place13 mi0.1
Walnut CreekCity13 mi19.8
Camino TassajaraCensus-designated place14 mi1.3

Frequently asked questions

What county is Antioch, CA in?
Antioch is in Contra Costa County, California.
What ZIP codes are in Antioch, CA?
ZIP codes in or overlapping Antioch include 94509, 94531.
What is the population of Antioch, CA?
About 116,477 people live in Antioch, based on American Community Survey 5-year estimates.
What cities are near Antioch?
Nearby places include Brentwood (5.3 mi), Oakley (5.8 mi), Pittsburg (5.8 mi), Clayton (7.8 mi), Knightsen (8 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023