Fairfield, CA ZIP Codes

3 ZIP codes serve Fairfield, California: 94533, 94534 and 94535. Together they are home to 123,960 residents in 40,264 households. Median household income ranges from $83,879 in 94535 to $140,198 in 94534.

Fairfield city limits (Census)

MeasureCensus figure
Residents120,785
Households38,757
Median household income$101,895
Median home value$624,300
Median age36.9
Median rent$2,266

All 3 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)123,960
Households (sum of ZIP codes)40,264
Median household income, range across ZIP codes$83,879 (94535) to $140,198 (94534)
Household-weighted average of ZIP medians (an approximation, not a true median)$105,703
Homeowners62.1%
Households with kids under 1835.2%
Moved in the past year11.0%
Carrier routes in EDDM2GO's route library79 routes, 43,710 homes (3 of 3 ZIP codes)

Top facts

Every ZIP code in Fairfield

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
94533Fairfield78,80525,174$87,384$542,20055.9%35.7%10.1%4529,00574% of its land; mailing city
94534Fairfield41,20314,036$140,198$744,50077.7%31.9%10.3%3216,25921% of its land; mailing city
94535Travis Afb3,9521,054$83,879—1.1%66.0%37.0%21,27779% of its land

A ZIP code is listed for Fairfield when at least 10% of its land lies inside Fairfield city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Fairfield. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Fairfield.

Counties

Price a mailing to Fairfield ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Fairfield, CA?
94533, 94534 and 94535. A ZIP code is listed for Fairfield when at least 10% of its land lies inside Fairfield city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Fairfield.
What is the population of Fairfield, CA?
The Census Bureau counts 120,785 residents inside Fairfield city limits (ACS 2020–2024). The 3 ZIP codes that serve Fairfield hold 123,960 residents in all.
What is the median household income in Fairfield, CA?
$101,895 inside Fairfield city limits, per the Census Bureau. Across its ZIP codes the medians run from $83,879 to $140,198.
Which Fairfield ZIP code has the highest median household income?
94534, at $140,198, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Fairfield, CA?
For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 79 carrier routes reaching 43,710 residential and 2,826 business mailboxes.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.