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/91358

91358

ZIP 91358 is in Thousand Oaks, California, in Ventura County; area codes 805 and 820; Pacific time. Thousand Oaks has 3 ZIP codes; the others are 91360 and 91362.

Type
No street area
Time zone
America/Los_Angeles
County
Ventura
Coordinates
34.1706, -118.8376

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 91362, whose figures describe that area — not this ZIP code.

☼ Live from 91358 — Thousand Oaks, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 91358 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 91358
  • 🔢 Type 91358 into a pocket calculator and turn it upside down: BSEIG — not quite a word, sorry.
  • ➕ As a number, 91,358 = 2 × 17 × 2687. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010011011110
  • 🏠 Its numerical neighbours: 91357 (Tarzana, CA, 16 mi away) and 91359 (Westlake Village, CA, 3 mi away).
  • 🔄 Backwards, 91358 becomes 85319, which is not a ZIP code at all.
  • 👥 37 other ZIP codes are made of exactly the same digits (13859, 15938, 18935, 18953, 19358, 19538, …). The farthest-flung twin is 18953 in Revere, PA, 2,414 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 92%.
  • 🎯1,181 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91358 and you would come out at 34.17°S, 61.16°E — 982 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 52m.
🌙 The sky over 91358 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments5This ZIP5
Employees18This ZIP18
Annual payroll$872,000This ZIP$872,000

Land area

ZIP codes near 91358

ZIPCityDistance
91362 Thousand Oaks, CA 1.8 mi
91359 Westlake Village, CA 2.5 mi
91361 Westlake Village, CA 3.4 mi
91360 Thousand Oaks, CA 3.6 mi
91377 Oak Park, CA 4.2 mi
91319 Newbury Park, CA 4.3 mi
91376 Agoura Hills, CA 4.3 mi
91301 Agoura Hills, CA 5.6 mi
91320 Newbury Park, CA 6.3 mi
90265 Malibu, CA 7.0 mi

Find every ZIP code within 10 miles of 91358 →

Questions about this ZIP code

Where is ZIP code 91358?

91358 is in Thousand Oaks, California, in Ventura County, part of the Oxnard-Thousand Oaks-Ventura, CA metropolitan area. Its published point location is 34.1706, -118.8376.

What county is 91358 in?

91358 lies in Ventura County.

What area code is 91358?

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

What time zone is 91358 in?

91358 uses America/Los_Angeles.

What ZIP codes are near 91358?

The closest are 91362 (1.8 mi), 91359 (2.5 mi), 91361 (3.4 mi), 91360 (3.6 mi) and 91377 (4.2 mi).

Is 91358 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.

Download or cite

Cite this page

zipcodes.pro. “91358 ZIP Code — Thousand Oaks, California (Ventura County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91358

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91358.json

Underlying data is public domain or openly licensed — sources, vintages and licences.