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/FAIRFIELD

Fairfield ZIP codes, California

Fairfield, CA has 2 ZIP codes (94533 and 94534) and area codes 707 and 369. The largest is 94533.

USPS city name
2 ZIP codes
Overlapping the city
5 more
Population
120,785
Area codes
707, 369

NANPA lists no telephone rate centre for Fairfield itself, so these are the area codes of the nearest one, Vacaville (5.9 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Fairfield uses the ZIP codes above. 5 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Fairfield in numbers

About 120,785 people live in Fairfield, in 38,757 households. The median household income is $101,895 a year, about the same as the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $624,300 (15% below the California median), and median gross rent is $2,266 a month. The median age is 36.9; 26.6% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 31 minutes.

Population120,785Fairfield120,785
Households38,757Fairfield38,757
Median age36.9Fairfield36.9California37.9US 38.9
Median household income$101,895Fairfield$101,895California$99,122US $80,734
Median home value$624,300Fairfield$624,300California$734,700US $332,700
Median gross rent$2,266Fairfield$2,266California$2,036US $1,413
Bachelor's degree or higher26.6%Fairfield26.6%California37.1%US 35.7%
Mean commute30.7 minFairfield30.7 minCalifornia28.7 minUS 26.4 min
Population density2,904 / sq miFairfield2,904 / sq mi

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

ZIP codes addressed as Fairfield

ZIP codes with the USPS city name Fairfield
ZIP City Type Population Median income Median home
94533 Fairfield , CA Standard 78,805 $87,384 $542,200
94534 Fairfield , CA Standard 41,203 $140,198 $744,500

Other ZIP codes overlapping Fairfield

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

ZIP codes overlapping Fairfield
ZIP City Type Population Median income Median home
94510 Benicia , CA Standard 26,749 $121,204 $810,000
94535 Travis Afb , CA Standard 3,952 $83,879 —
94585 Suisun City , CA Standard 29,357 $94,740 $580,800
94591 Vallejo , CA Standard 58,193 $104,550 $630,500
95687 Vacaville , CA Standard 69,390 $109,566 $606,300

Map of Fairfield ZIP codes

9453394534

The ZIP codes of Fairfield, 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 Fairfield

The nearest larger towns are Vallejo (124,268 people, 16 mi), Concord (124,035 people, 20 mi) and Oakland (439,418 people, 36 mi).

Towns near Fairfield
TownPopulationDistance
Suisun City 29,286 1.5 mi
Vacaville 102,596 7.5 mi
American Canyon 21,691 13.6 mi
Benicia 26,749 14.7 mi
Napa 78,239 14.8 mi
Bay Point 24,231 16.3 mi
Vallejo 124,268 16.5 mi
Dixon 19,683 17.1 mi
Crockett 3,372 17.7 mi
Vine Hill 3,540 17.9 mi
Pittsburg 76,257 18.5 mi
Martinez 36,903 18.8 mi
Rio Vista 10,102 18.8 mi
Winters 7,583 19.0 mi

More nearby: every ZIP code in Solano County · California ZIP codes

Cite this page

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

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