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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 — ZIP/94538

94538

ZIP 94538 is in Fremont, California, in Alameda County; Pacific time. Fremont has 5 ZIP codes; the others are 94536, 94537, 94539 and 94555.

Type
Standard
Time zone
America/Los_Angeles
County
Alameda
Population
67,781
Coordinates
37.5014, -121.9568
☼ Live from 94538 — Fremont, CA

Weather right now

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Local time: —

Where 94538 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 94538
  • 🔢 Type 94538 into a pocket calculator and turn it upside down: BEShG — not quite a word, sorry.
  • ➕ As a number, 94,538 = 2 × 47269. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000101001010
  • 🏠 Its numerical neighbours: 94537 (Fremont, CA, 13 mi away) and 94539 (Fremont, CA, 3 mi away).
  • 🔄 Backwards, 94538 becomes 83549 — and that is a real ZIP code: Riggins, ID, 618 miles away.
  • 👥 38 other ZIP codes are made of exactly the same digits (34958, 34985, 35894, 35984, 38459, 38549, …). The farthest-flung twin is 34958 in Jensen Beach, FL, 2,514 miles away.
  • 🧭 Farther south than 61% of all ZIP codes, and farther west than 95%.
  • 🎯1,268 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94538 and you would come out at 37.50°S, 58.04°E — 1,019 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 45m of daylight. Shortest: 9h 34m.
  • 📏 At 16.5 square miles of land, 94538 is bigger than 34% of ZIP codes — room for about 13 Central Parks.
🌙 The sky over 94538 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population67,781This ZIP67,781
Households23,628This ZIP23,628
Housing units24,854This ZIP24,854
Median age36.7This ZIP36.7California37.9US 38.9
Median household income$147,301This ZIP$147,301California$99,122US $80,734
Median home value$1,136,600This ZIP$1,136,600California$734,700US $332,700
Median gross rent$2,860This ZIP$2,860California$2,036US $1,413
Bachelor's degree or higher54.8%This ZIP54.8%
Mean commute29.0 minThis ZIP29.0 min
Population density4,097.5 / sq miThis ZIP4,097.5 / sq mi

Business and tax activity

Business establishments2,749This ZIP2,749
Employees93,523This ZIP93,523
Annual payroll$14,386,099,000This ZIP$14,386,099,000
Tax returns filed31,450This ZIP31,450
Total adjusted gross income$4,305,877,000This ZIP$4,305,877,000

Land area

Land area16.54 sq miThis ZIP16.54 sq mi
Water area0.10 sq miThis ZIP0.10 sq mi

Other place names in 94538

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 94538

ZIPCityDistance
94539 Fremont, CA 2.7 mi
94560 Newark, CA 4.1 mi
94536 Fremont, CA 5.0 mi
95134 San Jose, CA 5.0 mi
95002 Alviso, CA 5.3 mi
95036 Milpitas, CA 6.0 mi
95035 Milpitas, CA 6.2 mi
94089 Sunnyvale, CA 6.9 mi
95056 Santa Clara, CA 7.0 mi
94586 Sunol, CA 7.3 mi

Find every ZIP code within 10 miles of 94538 →

Questions about this ZIP code

Where is ZIP code 94538?

94538 is in Fremont, California, in Alameda County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.5014, -121.9568.

What county is 94538 in?

94538 lies in Alameda County.

What time zone is 94538 in?

94538 uses America/Los_Angeles.

How many people live in 94538?

About 67,781 people live in ZIP code 94538, in 23,628 households, at 4,097.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 94538?

$147,301 a year, against $99,122 across California.

What ZIP codes are near 94538?

The closest are 94539 (2.7 mi), 94560 (4.1 mi), 94536 (5 mi), 95134 (5 mi) and 95002 (5.3 mi).

Is 94538 a PO Box ZIP code?

94538 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94538 ZIP Code — Fremont, California (Alameda County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94538

Machine-readable version of these facts:

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