Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/ANTIOCH

Antioch ZIP codes, California

Antioch, CA has 2 ZIP codes (94509 and 94531) and area code 925. The largest is 94509.

USPS city name
2 ZIP codes
Overlapping the city
3 more
Population
116,477
Area code
925

Mail addressed to Antioch uses the ZIP codes above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Antioch in numbers

About 116,477 people live in Antioch, in 37,381 households. The median household income is $97,465 a year, about the same as the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $629,700 (14% below the California median), and median gross rent is $2,278 a month. The median age is 38.4; 23.9% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 42 minutes.

Population116,477Antioch116,477
Households37,381Antioch37,381
Median age38.4Antioch38.4California37.9US 38.9
Median household income$97,465Antioch$97,465California$99,122US $80,734
Median home value$629,700Antioch$629,700California$734,700US $332,700
Median gross rent$2,278Antioch$2,278California$2,036US $1,413
Bachelor's degree or higher23.9%Antioch23.9%California37.1%US 35.7%
Mean commute42.0 minAntioch42.0 minCalifornia28.7 minUS 26.4 min
Population density3,993 / sq miAntioch3,993 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Antioch city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Antioch

ZIP codes with the USPS city name Antioch
ZIP City Type Population Median income Median home
94509 Antioch , CA Standard 70,090 $86,196 $584,100
94531 Antioch , CA Standard 46,387 $120,927 $701,600

Other ZIP codes overlapping Antioch

These ZIP codes cover part of Antioch but are addressed as somewhere else.

ZIP codes overlapping Antioch
ZIP City Type Population Median income Median home
94513 Brentwood , CA Standard 69,755 $142,223 $837,800
94561 Oakley , CA Standard 46,368 $134,678 $659,800
94565 Pittsburg , CA Standard 100,488 $95,556 $583,800

Map of Antioch ZIP codes

The ZIP codes of Antioch, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Antioch

The nearest larger towns are Concord (124,035 people, 11 mi), Fairfield (120,785 people, 23 mi) and Stockton (322,326 people, 27 mi).

Towns near Antioch
TownPopulationDistance
Brentwood 65,208 5.1 mi
Oakley 45,183 5.7 mi
Pittsburg 76,257 6.1 mi
Clayton 10,937 7.8 mi
Bay Point 24,231 9.8 mi
Concord 124,035 11.2 mi
Discovery Bay 14,911 11.9 mi
Blackhawk 10,137 13.3 mi
Camino Tassajara 5,831 13.8 mi
Walnut Creek 70,088 14.3 mi
Contra Costa Centre 6,893 14.5 mi
San Miguel 3,967 14.6 mi
Rio Vista 10,102 14.6 mi
Alamo 14,488 14.6 mi

More nearby: every ZIP code in Contra Costa County · California ZIP codes

Cite this page

zipcodes.pro. “Antioch, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/antioch

Underlying data is public domain or openly licensed — sources, vintages and licences.