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/WALNUT-CREEK

Walnut Creek ZIP codes, California

Walnut Creek, CA has 4 ZIP codes (94598, 94597, 94596 and 94595) and area code 925. The largest is 94598.

USPS city name
4 ZIP codes
Overlapping the city
2 more
Population
70,088
Area code
925

Mail addressed to Walnut Creek uses the ZIP codes above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Walnut Creek in numbers

About 70,088 people live in Walnut Creek, in 33,072 households. The median household income is $130,432 a year, 32% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $1,057,300 (44% above the California median), and median gross rent is $2,680 a month. The median age is 46.8; 70.4% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 31 minutes.

Population70,088Walnut Creek70,088
Households33,072Walnut Creek33,072
Median age46.8Walnut Creek46.8California37.9US 38.9
Median household income$130,432Walnut Creek$130,432California$99,122US $80,734
Median home value$1,057,300Walnut Creek$1,057,300California$734,700US $332,700
Median gross rent$2,680Walnut Creek$2,680California$2,036US $1,413
Bachelor's degree or higher70.4%Walnut Creek70.4%California37.1%US 35.7%
Mean commute30.6 minWalnut Creek30.6 minCalifornia28.7 minUS 26.4 min
Population density3,547 / sq miWalnut Creek3,547 / sq mi

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

ZIP codes addressed as Walnut Creek

ZIP codes with the USPS city name Walnut Creek
ZIP City Type Population Median income Median home
94598 Walnut Creek , CA Standard 27,206 $186,225 $1,339,900
94597 Walnut Creek , CA Standard 23,129 $132,063 $1,026,800
94596 Walnut Creek , CA Standard 23,417 $135,635 $1,277,800
94595 Walnut Creek , CA Standard 16,988 $100,552 $860,600

Other ZIP codes overlapping Walnut Creek

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

ZIP codes overlapping Walnut Creek
ZIP City Type Population Median income Median home
94507 Alamo , CA Standard 14,586 $250,000+ $2,000,000+
94518 Concord , CA Standard 27,345 $112,094 $859,000

Map of Walnut Creek ZIP codes

94598945979459694595

The ZIP codes of Walnut Creek, 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 Walnut Creek

The nearest larger towns are Concord (124,035 people, 5.3 mi), Pittsburg (76,257 people, 11 mi) and San Ramon (85,993 people, 11 mi).

Towns near Walnut Creek
TownPopulationDistance
San Miguel 3,967 1.1 mi
Contra Costa Centre 6,893 1.8 mi
Saranap 5,662 2.2 mi
Alamo 14,488 3.6 mi
Pleasant Hill 34,235 4.0 mi
Reliez Valley 3,173 4.3 mi
Lafayette 25,285 4.4 mi
Concord 124,035 5.3 mi
Moraga 16,769 6.0 mi
Pacheco 4,325 6.1 mi
Clayton 10,937 6.6 mi
Orinda 19,514 7.1 mi
Danville 43,401 7.3 mi
Vine Hill 3,540 7.7 mi

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

Cite this page

zipcodes.pro. “Walnut Creek, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/walnut-creek

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