What city is 94534 in?

94534 is a Fairfield, CA mailing address. By land area, 21% lies inside Fairfield and 11% lies inside Green Valley; the rest is outside any Census-defined city or community.

What is the population of 94534?

About 41,203 people (±1,417), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 42,296.

What is the median household income in 94534?

$140,198 (±$11,162), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 94534?

32 USPS carrier routes with 15,280 residential and 974 business mailboxes (16,259 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 94534?

The closest, measured center to center: 94533 (6.6 mi, Fairfield), 94503 (6.8 mi, American Canyon), 94510 (8.9 mi, Benicia), 94591 (9 mi, Vallejo), 94559 (9.7 mi, Napa) and 94589 (9.8 mi, Vallejo).

94534 ZIP Code, Fairfield, CA

94534 is a ZIP code in Fairfield, California in Solano County. It covers 78 square miles of land. The closest ZIP codes are 94533, 94503 and 94510. 41,203 people live here in 14,036 households. With about 532 people per square mile it is lightly settled, and most homes are owner-occupied (78%). Median household income is $140,198, above the California median of $99,122.

Quick facts

Mailing city: Fairfield, CA
County: Solano County
Land area: 78 sq mi
Population: 41,203
Median household income: $140,198
Carrier routes: 32 (15,280 homes)

Key figures

Measure	Value
Residents	41,203
Households	14,036
Median household income	$140,198
Income per person	$60,839
Median age	41.5
Homeowners	77.7%
Median home value	$744,500
Median rent	$2,677
Bachelor's degree or higher	40.6%
Average commute (minutes)	31.1
Households with kids under 18	31.9%
Moved in the past year	10.3%
Below the poverty line	6.4%
Broadband internet	95.8%
Speak a non-English language at home	25.7%

Household income

% of households	Value
<$10K	4.1%
$10–15K	1.2%
$15–25K	1.7%
$25–35K	3.5%
$35–50K	5.9%
$50–75K	8.7%
$75–100K	9.9%
$100–150K	17.8%
$150–200K	15.5%
$200K+	31.6%

Age

% of all residents	Value
<10	11.9%
10–19	13.2%
20–24	5.6%
25–34	9.7%
35–44	15.5%
45–54	13.2%
55–64	12.0%
65–74	11.5%
75+	7.4%

Tenure

% of housing units	Value
Owned, with mortgage	54.4%
Owned outright	21.1%
Rented	21.5%
Vacant	3.1%

Type of building

% of housing units	Value
Detached house	85.1%
Townhome	2.8%
2–4 units	0.8%
5–19 units	2.9%
20+ units	7.7%
Mobile / other	0.6%

Businesses in 94534

812 business establishments with 14,787 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 136
Construction: 91
Professional, Scientific, and Technical Services: 76
Accommodation and Food Services: 74
Retail Trade: 64
Wholesale Trade: 55
Administrative and Support and Waste Management and Remediation Services: 54
Other Services (except Public Administration): 54

EDDM carrier routes

94534 has 32 USPS carrier routes with 15,280 residential and 974 business mailboxes. Open the EDDM route map.

Carrier routes in 94534

94534 has 32 USPS carrier routes (13 city (C), 19 rural (R)) with 15,280 residential and 974 business mailboxes. Routes range from 113 homes (R044) to 1,010 homes (R042); the median route has 428 homes. The Census counted 14,036 households in 94534 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	20
500–749	8
750–999	2
1,000–1,499	1
1,500+	0

Best routes in 94534 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route R034 — USPS business mailboxes 211, 370 homes
Route R044 — USPS business mailboxes 205, 113 homes
Route C034 — USPS business mailboxes 168, 371 homes
Route R021 — USPS business mailboxes 92, 275 homes
Route R023 — USPS business mailboxes 72, 302 homes

Select these 5 routes on the route map

Every carrier route in 94534

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C033	City	833	3	$94,047	—	—	—
C034	City	371	168	$113,340	—	—	—
C036	City	561	0	$128,739	—	—	—
C040	City	552	1	$85,267	—	—	—
C041	City	636	0	$200,001+	—	—	—
C045	City	428	1	$154,128	—	—	—
C047	City	542	0	$182,174	—	—	—
C048	City	465	65	$110,282	—	—	—
C050	City	788	17	$158,948	—	—	—
C052	City	535	4	$154,128	—	—	—
C054	City	670	17	$154,128	—	—	—
C056	City	428	0	$137,277	—	—	—
C059	City	614	2	$149,484	—	—	—
R008	Rural	439	6	$137,277	—	—	—
R009	Rural	425	2	$157,576	—	—	—
R011	Rural	383	2	$153,923	—	—	—
R012	Rural	410	0	$132,026	—	—	—
R014	Rural	417	0	$157,576	—	—	—
R015	Rural	466	7	$157,576	—	—	—
R016	Rural	386	0	$153,923	—	—	—
R017	Rural	421	64	$200,001+	—	—	—
R018	Rural	433	1	$104,332	—	—	—
R019	Rural	578	30	$104,332	—	—	—
R020	Rural	363	1	$153,923	—	—	—
R021	Rural	275	92	$112,218	—	—	—
R023	Rural	302	72	$132,026	—	—	—
R034	Rural	370	211	$112,218	—	—	—
R040	Rural	386	0	$112,218	—	—	—
R041	Rural	329	1	$112,218	—	—	—
R042	Rural	1,010	2	$132,026	—	—	—
R043	Rural	351	0	$153,923	—	—	—
R044	Rural	113	205	$104,332	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94534 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

94533 — Fairfield city, CA (6.6 mi)
94503 — American Canyon city, CA (6.8 mi)
94510 — Benicia city, CA (8.9 mi)
94591 — Vallejo city, CA (9 mi)
94559 — Napa city, CA (9.7 mi)
94589 — Vallejo city, CA (9.8 mi)
94535 — Fairfield city, CA (10 mi)
94585 — Suisun City city, CA (10.4 mi)

Areas that include 94534

Where it ranks

Mail every home in 94534

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94534, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94534 in?: 94534 is a Fairfield, CA mailing address. By land area, 21% lies inside Fairfield and 11% lies inside Green Valley; the rest is outside any Census-defined city or community.
What county is 94534 in?: 94534 is in Solano County.
What is the population of 94534?: About 41,203 people (±1,417), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 42,296.
What is the median household income in 94534?: $140,198 (±$11,162), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 94534?: 32 USPS carrier routes with 15,280 residential and 974 business mailboxes (16,259 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94534?: The closest, measured center to center: 94533 (6.6 mi, Fairfield), 94503 (6.8 mi, American Canyon), 94510 (8.9 mi, Benicia), 94591 (9 mi, Vallejo), 94559 (9.7 mi, Napa) and 94589 (9.8 mi, Vallejo).

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