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/CLAYTON

Clayton ZIP code, California

The ZIP code for Clayton, CA is 94517, and its area code is 925.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
10,937
Area code
925

Mail addressed to Clayton uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Clayton in numbers

About 10,937 people live in Clayton, in 3,982 households. The median household income is $175,707 a year, 77% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $1,055,200 (44% above the California median), and median gross rent is $3,500+ a month. The median age is 43.8; 59.1% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 36 minutes.

Population10,937Clayton10,937
Households3,982Clayton3,982
Median age43.8Clayton43.8California37.9US 38.9
Median household income$175,707Clayton$175,707California$99,122US $80,734
Median home value$1,055,200Clayton$1,055,200California$734,700US $332,700
Median gross rent$3,500+Clayton$3,500+California$2,036US $1,413
Bachelor's degree or higher59.1%Clayton59.1%California37.1%US 35.7%
Mean commute35.5 minClayton35.5 minCalifornia28.7 minUS 26.4 min
Population density2,848 / sq miClayton2,848 / sq mi

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

ZIP codes addressed as Clayton

ZIP codes with the USPS city name Clayton
ZIP City Type Population Median income Median home
94517 Clayton , CA Standard 12,316 $168,921 $1,032,100

Other ZIP codes overlapping Clayton

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

ZIP codes overlapping Clayton
ZIP City Type Population Median income Median home
94521 Concord , CA Standard 41,909 $125,899 $853,200

Map of Clayton ZIP codes

94517

The ZIP codes of Clayton, 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 Clayton

The nearest larger towns are Concord (124,035 people, 4.5 mi), Pittsburg (76,257 people, 5.6 mi) and Walnut Creek (70,088 people, 6.6 mi).

Towns near Clayton
TownPopulationDistance
Concord 124,035 4.5 mi
Pittsburg 76,257 5.6 mi
Walnut Creek 70,088 6.6 mi
Bay Point 24,231 6.6 mi
Contra Costa Centre 6,893 6.8 mi
San Miguel 3,967 6.9 mi
Alamo 14,488 7.5 mi
Antioch 116,477 7.8 mi
Pleasant Hill 34,235 8.0 mi
Pacheco 4,325 8.3 mi
Saranap 5,662 8.7 mi
Blackhawk 10,137 9.1 mi
Danville 43,401 9.1 mi
Reliez Valley 3,173 9.4 mi

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

Cite this page

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

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