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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/91320

91320

ZIP 91320 is in Newbury Park, California, in Ventura County; area codes 805 and 820; Pacific time. Newbury Park has 2 ZIP codes; the other is 91319.

Type
Standard
Time zone
America/Los_Angeles
County
Ventura
Population
43,472
Coordinates
34.1734, -118.9480
☼ Live from 91320 — Newbury Park, CA

Weather right now

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Local time: —

Where 91320 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 91320
  • 🔢 Type 91320 into a pocket calculator and turn it upside down: OZEIG — not quite a word, sorry.
  • ➕ As a number, 91,320 = 2 × 2 × 2 × 3 × 5 × 761. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010010111000
  • 🏠 Its numerical neighbours: 91319 (Newbury Park, CA, 2 mi away) and 91321 (Newhall, CA, 29 mi away).
  • 🔄 Backwards, 91320 becomes 02319, which is not a ZIP code at all.
  • 👥 65 other ZIP codes are made of exactly the same digits (01923, 02139, 03291, 09123, 09132, 09213, …). The farthest-flung twin is 09213 in APO AE, a military post office, 5,794 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 92%.
  • 🎯1,187 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91320 and you would come out at 34.17°S, 61.05°E — 980 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 52m.
  • 📏 At 20.2 square miles of land, 91320 is bigger than 38% of ZIP codes — room for about 15 Central Parks.
🌙 The sky over 91320 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population43,472This ZIP43,472
Households15,265This ZIP15,265
Housing units15,636This ZIP15,636
Median age43.3This ZIP43.3California37.9US 38.9
Median household income$148,991This ZIP$148,991California$99,122US $80,734
Median home value$948,100This ZIP$948,100California$734,700US $332,700
Median gross rent$2,772This ZIP$2,772California$2,036US $1,413
Bachelor's degree or higher54.3%This ZIP54.3%
Mean commute24.9 minThis ZIP24.9 min
Population density2,154.6 / sq miThis ZIP2,154.6 / sq mi

Business and tax activity

Business establishments1,341This ZIP1,341
Employees23,516This ZIP23,516
Annual payroll$2,626,871,000This ZIP$2,626,871,000
Tax returns filed21,180This ZIP21,180
Total adjusted gross income$2,901,802,000This ZIP$2,901,802,000

Land area

Land area20.18 sq miThis ZIP20.18 sq mi
Water area0.00 sq mi

Other place names in 91320

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

ZIP codes near 91320

ZIPCityDistance
91319 Newbury Park, CA 2.3 mi
93012 Camarillo, CA 3.2 mi
91361 Westlake Village, CA 4.5 mi
91360 Thousand Oaks, CA 5.0 mi
93011 Camarillo, CA 5.9 mi
91358 Thousand Oaks, CA 6.3 mi
91362 Thousand Oaks, CA 7.5 mi
91359 Westlake Village, CA 8.4 mi
93010 Camarillo, CA 8.4 mi
93020 Moorpark, CA 8.6 mi

Find every ZIP code within 10 miles of 91320 →

Questions about this ZIP code

Where is ZIP code 91320?

91320 is in Newbury Park, California, in Ventura County, part of the Oxnard-Thousand Oaks-Ventura, CA metropolitan area. Its published point location is 34.1734, -118.9480.

What county is 91320 in?

91320 lies in Ventura County.

What area code is 91320?

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

What time zone is 91320 in?

91320 uses America/Los_Angeles.

How many people live in 91320?

About 43,472 people live in ZIP code 91320, in 15,265 households, at 2,154.6 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 91320?

$148,991 a year, against $99,122 across California.

What ZIP codes are near 91320?

The closest are 91319 (2.3 mi), 93012 (3.2 mi), 91361 (4.5 mi), 91360 (5 mi) and 93011 (5.9 mi).

Is 91320 a PO Box ZIP code?

91320 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91320 ZIP Code — Newbury Park, California (Ventura County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91320

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