Antioch is the third-most populous city in Contra Costa County, California, United States. The city is located in the East Bay region of the San Francisco Bay Area along the Sacramento–San Joaquin River Delta. The city's population was 115,291 at the 2020 census. The city has grown substantially more diverse since the 1970s.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How Antioch ranks

All →

#133Fastest growing in CA #157Most conserved land in CA #184Lowest depression in CA All CA rankings →

Town numbers

ZIP code94509, 94531

Area code925

Living in Antioch

Housing in Antioch

$592K▼ 1.4% in a year Typical home value · Zillow

The typical Antioch home is worth about $592,000, down 1.4% in a year, 23% below the California typical home.

A seller's market

Buyer’sBalancedSeller’s

Days on market20

Sale-to-list101.3%

Sold in May79

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Antioch

Safety Grade D

Antioch reports more crime per resident than most U.S. towns we grade: about 92% report less.

Violent crime per 1,000

Antioch 7.5

California 4.3

U.S. 3.3

Property crime per 1,000

Antioch 24.3

California 18.2

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Work & commute in Antioch

Full picture →

Most working residents leave Antioch for work: only 10% work in town. The top destinations are San Francisco (9%), Concord (6%) and Oakland (6%). Half commute less than 27 miles.

San Francisco

Concord

Oakland

Walnut Creek

10%Work in townlive and work in Antioch 27 miWhere do people commute?the commute map 21,309Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Antioch →

Health in Antioch

B⁻

Health Grade B−

Healthier than 46% of U.S. towns on seven CDC estimates.

Compared with California

1better than CA·6worse

of 32 measures CDC estimates. The other 25 are too close to call.

Conditions 1▲ 1▼ 10 close Habits 1▼ 3 close Care all close Mind all close Everyday needs 4▼ 0 close

BetterToo close to callWorse

What stands out

5.6%Fewer adults who have had cancerCA 6.4% · better 9.6%More adults facing a utility shut-offCA 7.3% · worse

Care nearby

Kaiser Foundation Hospital - AntiochAntioch · 1.5 mi · ER

Brighter Beginnings Family Health Clinic Antioch Lone TreeAntioch · 0.8 mi · sliding-scale fees

2 hospitals · 2 health centers in Antioch →

Primary careNo shortage

DentalNo shortage

Mental healthNo shortage

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Antioch · CMS · HRSAHealth in Antioch →

Natural hazards in Antioch

High

Expected storm and flood damage is higher than in 79% of U.S. communities.

🏚️ Earthquakes🌊 Inland flooding

59Does Antioch flood?paid flood claims since 1982 2Disasters that paid out herefederal disasters sent FEMA money to Antioch MapAntioch vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Antioch →

Climate in Antioch

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Antioch has mild winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 40°, and snow is almost unheard of.

58° / 40°Winter

72° / 48°Spring

88° / 58°Summer

76° / 51°Fall

How much snow does Antioch get?Almost none.Rain & snow →Does it ever freeze?In about 81% of years.Frost →Is it warmer than it used to be?+1.5° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Antioch →

Schools in Antioch

All Antioch schools →

B⁺

School Grade B+

The public schools Antioch’s kids attend, from kindergarten through graduation, outperform 67% of California’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

#209Best public schoolsof 574 in CA

DistrictAntioch UnifiedSchools34

Muir (John) ElementaryElementary · Grades K–5 · 660 students Rocketship Delta PrepElementary · Grades K–5 · 540 students Marsh ElementaryElementary · Grades K–5 · 522 students Lone Tree ElementaryElementary · Grades K–5 · 518 students Mission ElementaryElementary · Grades K–5 · 512 students Diablo Vista ElementaryElementary · Grades K–5 · 496 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within CA. Ratings are from neighbors.