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/93099

93099

ZIP 93099 is in Simi Valley, California, in Ventura County; area codes 805 and 820; Pacific time. Simi Valley has 5 ZIP codes; the others are 93062, 93063, 93065 and 93094.

Type
No street area
Time zone
America/Los_Angeles
County
Ventura
Coordinates
34.2694, -118.7815

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 93065, whose figures describe that area — not this ZIP code.

☼ Live from 93099 — Simi Valley, CA

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Where 93099 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 93099
  • 🔢 Type 93099 into a pocket calculator and turn it upside down: GGOEG — not quite a word, sorry.
  • ➕ As a number, 93,099 = 3 × 31033. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110101110101011
  • 🏠 Its numerical neighbours: 93094 (Simi Valley, CA, 0 mi away) and 93101 (Santa Barbara, CA, 54 mi away).
  • 🔄 Backwards, 93099 becomes 99039 — and that is a real ZIP code: Waverly, WA, 907 miles away.
  • 👥 3 other ZIP codes are made of exactly the same digits (30999, 99039, 99903). The farthest-flung twin is 30999 in Augusta, GA, 2,095 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,175 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 93099 and you would come out at 34.27°S, 61.22°E — 990 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 27m of daylight. Shortest: 9h 52m.
🌙 The sky over 93099 today
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Source: USGS.

Land area

ZIP codes near 93099

ZIPCityDistance
93062 Simi Valley, CA 0.0 mi
93094 Simi Valley, CA 0.0 mi
93065 Simi Valley, CA 0.7 mi
93064 Brandeis, CA 5.0 mi
91362 Thousand Oaks, CA 5.7 mi
93020 Moorpark, CA 5.8 mi
91377 Oak Park, CA 5.9 mi
93063 Simi Valley, CA 6.0 mi
93021 Moorpark, CA 6.3 mi
91360 Thousand Oaks, CA 6.6 mi

Find every ZIP code within 10 miles of 93099 →

Questions about this ZIP code

Where is ZIP code 93099?

93099 is in Simi Valley, California, in Ventura County, part of the Oxnard-Thousand Oaks-Ventura, CA metropolitan area. Its published point location is 34.2694, -118.7815.

What county is 93099 in?

93099 lies in Ventura County.

What area code is 93099?

Simi Valley uses area codes 805 and 820, from NANPA's telephone records.

What time zone is 93099 in?

93099 uses America/Los_Angeles.

What ZIP codes are near 93099?

The closest are 93062 (0 mi), 93094 (0 mi), 93065 (0.7 mi), 93064 (5 mi) and 91362 (5.7 mi).

Is 93099 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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zipcodes.pro. “93099 ZIP Code — Simi Valley, California (Ventura County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/93099

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