Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/94955

94955

ZIP 94955 is in Petaluma, California, in Sonoma County; area codes 707 and 369; Pacific time. Petaluma has 6 ZIP codes; the others are 94952, 94953, 94954, 94975 and 94999.

Type
No street area
Time zone
America/Los_Angeles
County
Sonoma
Coordinates
38.2324, -122.6367

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 94952, whose figures describe that area — not this ZIP code.

☼ Live from 94955 — Petaluma, CA

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Where 94955 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 94955
  • 🔢 Type 94955 into a pocket calculator and turn it upside down: SSGhG — not quite a word, sorry.
  • ➕ As a number, 94,955 = 5 × 7 × 2713. Its digits add up to 32, a total 644 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111001011101011
  • 🏠 Its numerical neighbours: 94954 (Petaluma, CA, 4 mi away) and 94956 (Point Reyes Station, CA, 18 mi away).
  • 🔄 Backwards, 94955 becomes 55949 — and that is a real ZIP code: Lanesboro, MN, 1,636 miles away.
  • 👥 10 other ZIP codes are made of exactly the same digits (49955, 55949, 94559, 94595, 95459, 95549, …). The farthest-flung twin is 99554 in Alakanuk, AK, 2,429 miles away.
  • 🧭 Farther south than 57% of all ZIP codes, and farther west than 97%.
  • 🎯1,292 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94955 and you would come out at 38.23°S, 57.36°E — 998 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 30m.
🌙 The sky over 94955 today
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Source: USGS.

Land area

ZIP codes near 94955

ZIPCityDistance
94953 Petaluma, CA 0.0 mi
94975 Petaluma, CA 0.0 mi
94999 Petaluma, CA 2.7 mi
94954 Petaluma, CA 4.3 mi
94951 Penngrove, CA 6.2 mi
94948 Novato, CA 6.7 mi
94952 Petaluma, CA 6.7 mi
94931 Cotati, CA 7.7 mi
94926 Rohnert Park, CA 8.2 mi
94927 Rohnert Park, CA 8.2 mi

Find every ZIP code within 10 miles of 94955 →

Questions about this ZIP code

Where is ZIP code 94955?

94955 is in Petaluma, California, in Sonoma County, part of the Santa Rosa-Petaluma, CA metropolitan area. Its published point location is 38.2324, -122.6367.

What county is 94955 in?

94955 lies in Sonoma County.

What area code is 94955?

Petaluma uses area codes 707 and 369, from NANPA's telephone records.

What time zone is 94955 in?

94955 uses America/Los_Angeles.

What ZIP codes are near 94955?

The closest are 94953 (0 mi), 94975 (0 mi), 94999 (2.7 mi), 94954 (4.3 mi) and 94951 (6.2 mi).

Is 94955 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “94955 ZIP Code — Petaluma, California (Sonoma County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94955

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