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/93031

93031

ZIP 93031 is in Oxnard, California, in Ventura County; area codes 805 and 820; Pacific time. Oxnard has 7 ZIP codes in all.

Type
No street area
Time zone
America/Los_Angeles
County
Ventura
Coordinates
34.0324, -119.1343

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.

☼ Live from 93031 — Oxnard, CA

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Where 93031 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 93031
  • 🔢 Type 93031 into a pocket calculator and turn it upside down: IEOEG — not quite a word, sorry.
  • ➕ As a number, 93,031 = 31 × 3001. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110101101100111
  • 🏠 Its numerical neighbours: 93030 (Oxnard, CA, 12 mi away) and 93032 (Oxnard, CA, 12 mi away).
  • 🔄 Backwards, 93031 becomes 13039 — and that is a real ZIP code: Cicero, NY, 2,382 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (01339, 10933, 13039, 13093, 13309, 13903, …). The farthest-flung twin is 01339 in Charlemont, MA, 2,543 miles away.
  • 🧭 Farther south than 79% of all ZIP codes, and farther west than 93%.
  • 🎯1,200 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 93031 and you would come out at 34.03°S, 60.87°E — 967 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 25m of daylight. Shortest: 9h 53m.
🌙 The sky over 93031 today
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🌋 Shake report
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Source: USGS.

Business and tax activity

Business establishments9This ZIP9
Employees89This ZIP89
Annual payroll$6,344,000This ZIP$6,344,000

Land area

ZIP codes near 93031

ZIPCityDistance
93034 Oxnard, CA 0.0 mi
93044 Port Hueneme, CA 8.7 mi
93033 Oxnard, CA 8.8 mi
93041 Port Hueneme, CA 9.5 mi
93043 Port Hueneme Cbc Base, CA 10.3 mi
93032 Oxnard, CA 11.7 mi
93035 Oxnard, CA 11.9 mi
93030 Oxnard, CA 12.2 mi
93011 Camarillo, CA 13.9 mi
93010 Camarillo, CA 13.9 mi

Find every ZIP code within 10 miles of 93031 →

Questions about this ZIP code

Where is ZIP code 93031?

93031 is in Oxnard, California, in Ventura County, part of the Oxnard-Thousand Oaks-Ventura, CA metropolitan area. Its published point location is 34.0324, -119.1343.

What county is 93031 in?

93031 lies in Ventura County.

What area code is 93031?

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

What time zone is 93031 in?

93031 uses America/Los_Angeles.

What ZIP codes are near 93031?

The closest are 93034 (0 mi), 93044 (8.7 mi), 93033 (8.8 mi), 93041 (9.5 mi) and 93043 (10.3 mi).

Is 93031 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. “93031 ZIP Code — Oxnard, California (Ventura County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/93031

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/93031.json

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