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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/94545

94545

ZIP 94545 is in Hayward, California, in Alameda County; area codes 510 and 341; Pacific time. Hayward has 7 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
Alameda
Population
32,843
Coordinates
37.6298, -122.1242
☼ Live from 94545 — Hayward, CA

Weather right now

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NEXRAD radar
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Local time: —

Where 94545 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 94545
  • 🔢 Type 94545 into a pocket calculator and turn it upside down: ShShG — not quite a word, sorry.
  • ➕ As a number, 94,545 = 3 × 3 × 5 × 11 × 191. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000101010001
  • 🏠 Its numerical neighbours: 94544 (Hayward, CA, 4 mi away) and 94546 (Castro Valley, CA, 8 mi away).
  • 🔄 Backwards, 94545 becomes 54549, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (45459, 49455, 54459, 54495, 54945, 55449, …). The farthest-flung twin is 45459 in Dayton, OH, 2,038 miles away.
  • 🧭 Farther south than 61% of all ZIP codes, and farther west than 96%.
  • 🎯1,274 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94545 and you would come out at 37.63°S, 57.88°E — 1,016 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 46m of daylight. Shortest: 9h 33m.
  • 📏 At 14.5 square miles of land, 94545 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
🌙 The sky over 94545 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population32,843This ZIP32,843
Households10,085This ZIP10,085
Housing units10,373This ZIP10,373
Median age40.7This ZIP40.7California37.9US 38.9
Median household income$114,356This ZIP$114,356California$99,122US $80,734
Median home value$879,400This ZIP$879,400California$734,700US $332,700
Median gross rent$2,442This ZIP$2,442California$2,036US $1,413
Bachelor's degree or higher36.9%This ZIP36.9%
Mean commute33.4 minThis ZIP33.4 min
Population density2,268.2 / sq miThis ZIP2,268.2 / sq mi

Business and tax activity

Business establishments1,703This ZIP1,703
Employees33,827This ZIP33,827
Annual payroll$2,683,554,000This ZIP$2,683,554,000
Tax returns filed16,190This ZIP16,190
Total adjusted gross income$1,502,456,000This ZIP$1,502,456,000

Land area

Land area14.48 sq miThis ZIP14.48 sq mi
Water area1.66 sq miThis ZIP1.66 sq mi

Other place names in 94545

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

ZIP codes near 94545

ZIPCityDistance
94580 San Lorenzo, CA 3.4 mi
94543 Hayward, CA 3.6 mi
94541 Hayward, CA 3.6 mi
94544 Hayward, CA 3.7 mi
94587 Union City, CA 3.8 mi
94579 San Leandro, CA 4.3 mi
94578 San Leandro, CA 5.3 mi
94542 Hayward, CA 5.7 mi
94555 Fremont, CA 5.9 mi
94577 San Leandro, CA 6.5 mi

Find every ZIP code within 10 miles of 94545 →

Questions about this ZIP code

Where is ZIP code 94545?

94545 is in Hayward, California, in Alameda County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.6298, -122.1242.

What county is 94545 in?

94545 lies in Alameda County.

What area code is 94545?

Hayward uses area codes 510 and 341, from NANPA's telephone records.

What time zone is 94545 in?

94545 uses America/Los_Angeles.

How many people live in 94545?

About 32,843 people live in ZIP code 94545, in 10,085 households, at 2,268.2 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 94545?

$114,356 a year, against $99,122 across California.

What ZIP codes are near 94545?

The closest are 94580 (3.4 mi), 94543 (3.6 mi), 94541 (3.6 mi), 94544 (3.7 mi) and 94587 (3.8 mi).

Is 94545 a PO Box ZIP code?

94545 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94545 ZIP Code — Hayward, California (Alameda County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94545

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