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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/94556

94556

ZIP 94556 is in Moraga, California, in Contra Costa County; area code 925; Pacific time. Moraga has 3 ZIP codes; the others are 94570 and 94575.

Type
Standard
Time zone
America/Los_Angeles
County
Contra Costa
Population
15,998
Coordinates
37.8320, -122.1059
☼ Live from 94556 — Moraga, CA

Weather right now

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Local time: —

Where 94556 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 94556
  • 🔢 Type 94556 into a pocket calculator and turn it upside down: gSShG — not quite a word, sorry.
  • ➕ As a number, 94,556 = 2 × 2 × 7 × 11 × 307. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000101011100
  • 🏠 Its numerical neighbours: 94555 (Fremont, CA, 20 mi away) and 94557 (Hayward, CA, 15 mi away).
  • 🔄 Backwards, 94556 becomes 65549, which is not a ZIP code at all.
  • 👥 25 other ZIP codes are made of exactly the same digits (45659, 45695, 46595, 49655, 54659, 54956, …). The farthest-flung twin is 96554 in APO AA, a military post office, 7,441 miles away.
  • 🧭 Farther south than 59% of all ZIP codes, and farther west than 96%.
  • 🎯1,270 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94556 and you would come out at 37.83°S, 57.89°E — 1,004 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 32m.
  • 📏 At 19.3 square miles of land, 94556 is bigger than 37% of ZIP codes — room for about 15 Central Parks.
🌙 The sky over 94556 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15,998This ZIP15,998
Households5,614This ZIP5,614
Housing units5,801This ZIP5,801
Median age42.4This ZIP42.4California37.9US 38.9
Median household income$215,720This ZIP$215,720California$99,122US $80,734
Median home value$1,659,600This ZIP$1,659,600California$734,700US $332,700
Median gross rent$2,906This ZIP$2,906California$2,036US $1,413
Bachelor's degree or higher81.9%This ZIP81.9%
Mean commute31.5 minThis ZIP31.5 min
Population density829.8 / sq miThis ZIP829.8 / sq mi

Business and tax activity

Business establishments336This ZIP336
Employees3,857This ZIP3,857
Annual payroll$219,134,000This ZIP$219,134,000
Tax returns filed7,150This ZIP7,150
Total adjusted gross income$2,120,544,000This ZIP$2,120,544,000

Land area

Land area19.28 sq miThis ZIP19.28 sq mi
Water area0.10 sq miThis ZIP0.10 sq mi

Other place names in 94556

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

ZIP codes near 94556

ZIPCityDistance
94575 Moraga, CA 0.7 mi
94516 Canyon, CA 3.3 mi
94595 Walnut Creek, CA 3.4 mi
94619 Oakland, CA 4.0 mi
94549 Lafayette, CA 4.8 mi
94605 Oakland, CA 5.4 mi
94596 Walnut Creek, CA 5.5 mi
94613 Oakland, CA 5.5 mi
94507 Alamo, CA 5.6 mi
94602 Oakland, CA 5.7 mi

Find every ZIP code within 10 miles of 94556 →

Questions about this ZIP code

Where is ZIP code 94556?

94556 is in Moraga, California, in Contra Costa County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.8320, -122.1059.

What county is 94556 in?

94556 lies in Contra Costa County.

What area code is 94556?

Moraga uses area code 925, from NANPA's telephone records.

What time zone is 94556 in?

94556 uses America/Los_Angeles.

How many people live in 94556?

About 15,998 people live in ZIP code 94556, in 5,614 households, at 829.8 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 94556?

$215,720 a year, against $99,122 across California.

What ZIP codes are near 94556?

The closest are 94575 (0.7 mi), 94516 (3.3 mi), 94595 (3.4 mi), 94619 (4 mi) and 94549 (4.8 mi).

Is 94556 a PO Box ZIP code?

94556 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94556 ZIP Code — Moraga, California (Contra Costa County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94556

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