94538 ZIP Code, Fremont, CA

94538 is a ZIP code in Fremont, California in Alameda County. It covers 17 square miles of land. The closest ZIP codes are 94539, 94560 and 94536. 67,781 people live here in 23,628 households, more than in 9 of every 10 California ZIP codes. At about 4,098 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (45% own). Median household income is $147,301, above the California median of $99,122.

Quick facts

Key figures

MeasureValue
Residents67,781
Households23,628
Median household income$147,301
Income per person$63,191
Median age36.7
Homeowners44.7%
Median home value$1,136,600
Median rent$2,860
Bachelor's degree or higher54.8%
Average commute (minutes)29
Households with kids under 1838.0%
Moved in the past year16.0%
Below the poverty line5.5%
Broadband internet96.3%
Speak a non-English language at home66.6%

Household income

% of householdsValue
<$10K2.7%
$10–15K1.4%
$15–25K2.6%
$25–35K2.4%
$35–50K5.4%
$50–75K10.8%
$75–100K7.3%
$100–150K18.2%
$150–200K16.4%
$200K+32.7%

Age

% of all residentsValue
<1011.9%
10–1910.8%
20–245.1%
25–3418.8%
35–4417.8%
45–5413.0%
55–6410.9%
65–747.0%
75+4.7%

Tenure

% of housing unitsValue
Owned, with mortgage30.6%
Owned outright12.2%
Rented52.3%
Vacant4.9%

Type of building

% of housing unitsValue
Detached house41.8%
Townhome10.5%
2–4 units4.0%
5–19 units11.1%
20+ units30.9%
Mobile / other1.6%

Businesses in 94538

2,749 business establishments with 93,523 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

94538 has 44 USPS carrier routes with 25,566 residential and 3,664 business mailboxes. Open the EDDM route map.

Carrier routes in 94538

94538 has 44 USPS carrier routes (44 city (C)) with 25,566 residential and 3,664 business mailboxes. Routes range from 85 homes (C021) to 1,542 homes (C012); the median route has 537 homes. The Census counted 23,628 households in 94538 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2494
250–49912
500–74915
750–99910
1,000–1,4991
1,500+1

Best routes in 94538 for…

Most businesses

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

  1. Route C021 — USPS business mailboxes 465, 85 homes
  2. Route C101 — USPS business mailboxes 395, 151 homes
  3. Route C035 — USPS business mailboxes 331, 0 homes
  4. Route C071 — USPS business mailboxes 298, 705 homes
  5. Route C061 — USPS business mailboxes 225, 746 homes

Select these 5 routes on the route map

Every carrier route in 94538

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City70027$194,766———
C003City82985$200,001+———
C004City9661$122,061———
C005City59012$200,001+———
C007City86622$173,951———
C008City80025$102,956———
C010City5731$120,151———
C011City5151$180,034———
C012City1,54235$200,001+———
C014City5032$171,179———
C015City4652$121,394———
C019City351118$171,179———
C021City85465$200,001+———
C022City4862$144,206———
C024City4590$180,236———
C031City53713$180,236———
C033City5350$169,595———
C034City4798$120,151———
C035City0331$200,001+———
C036City472105$165,495———
C043City4232$180,236———
C044City8809$137,750———
C046City329220$200,001+———
C052City4492$171,179———
C056City62634$200,001+———
C059City363109$151,124———
C060City198185$200,001+———
C061City746225$119,458———
C062City5010$180,236———
C064City4705$121,394———
C068City84751$174,789———
C069City104218$141,816———
C071City705298$141,816———
C079City53710$188,021———
C081City5580$86,006———
C082City63316$155,230———
C085City398205$200,001+———
C090City7863$106,255———
C093City609143$200,001+———
C095City1,01920$93,118———
C096City81333$141,816———
C097City88218$200,001+———
C100City786208$200,001+———
C101City151395$200,001+———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94538 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

Areas that include 94538

Where it ranks

Mail every home in 94538

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) 94538, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94538 in?
94538 is a Fremont, CA mailing address. By land area, 100% lies inside Fremont.
What county is 94538 in?
94538 is in Alameda County.
What is the population of 94538?
About 67,781 people (±2,227), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 66,424.
What is the median household income in 94538?
$147,301 (±$6,972), 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 94538?
44 USPS carrier routes with 25,566 residential and 3,664 business mailboxes (29,230 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94538?
The closest, measured center to center: 94539 (2.7 mi, Fremont), 94560 (4.1 mi, Newark), 94536 (5 mi, Fremont), 95134 (5 mi, San Jose), 95002 (5.3 mi, San Jose) and 95035 (6.2 mi, Milpitas).

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