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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/91764

91764

ZIP 91764 is in Ontario, California, in San Bernardino County; area codes 909 and 840; Pacific time. Ontario has 4 ZIP codes; the others are 91758, 91761 and 91762.

Type
Standard
Time zone
America/Los_Angeles
Population
56,270
Coordinates
34.0741, -117.6056
☼ Live from 91764 — Ontario, CA

Weather right now

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Where 91764 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 91764
  • 🔢 Type 91764 into a pocket calculator and turn it upside down: hgLIG — not quite a word, sorry.
  • ➕ As a number, 91,764 = 2 × 2 × 3 × 3 × 2549. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011001110100
  • 🏠 Its numerical neighbours: 91763 (Montclair, CA, 5 mi away) and 91765 (Diamond Bar, CA, 13 mi away).
  • 🔄 Backwards, 91764 becomes 46719, which is not a ZIP code at all.
  • 👥 35 other ZIP codes are made of exactly the same digits (14769, 16749, 16947, 17946, 17964, 46791, …). The farthest-flung twin is 96741 in Kalaheo, HI, 2,669 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 90%.
  • 🎯1,120 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91764 and you would come out at 34.07°S, 62.39°E — 1,005 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 53m.
  • 📏 At 7.9 square miles of land, 91764 is bigger than 24% of ZIP codes — room for about 6.0 Central Parks.
🌙 The sky over 91764 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population56,270This ZIP56,270
Households16,624This ZIP16,624
Housing units17,498This ZIP17,498
Median age31.8This ZIP31.8California37.9US 38.9
Median household income$81,762This ZIP$81,762California$99,122US $80,734
Median home value$565,800This ZIP$565,800California$734,700US $332,700
Median gross rent$2,181This ZIP$2,181California$2,036US $1,413
Bachelor's degree or higher19.3%This ZIP19.3%
Mean commute30.7 minThis ZIP30.7 min
Population density7,116.5 / sq miThis ZIP7,116.5 / sq mi

Business and tax activity

Business establishments1,367This ZIP1,367
Employees31,385This ZIP31,385
Annual payroll$1,524,758,000This ZIP$1,524,758,000
Tax returns filed25,340This ZIP25,340
Total adjusted gross income$1,342,871,000This ZIP$1,342,871,000

Land area

Land area7.91 sq miThis ZIP7.91 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 91764

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

ZIP codes near 91764

ZIPCityDistance
91743 Guasti, CA 1.3 mi
91730 Rancho Cucamonga, CA 2.3 mi
91729 Rancho Cucamonga, CA 2.3 mi
91758 Ontario, CA 2.7 mi
91761 Ontario, CA 2.8 mi
91762 Ontario, CA 3.8 mi
91786 Upland, CA 3.9 mi
91785 Upland, CA 4.1 mi
91701 Rancho Cucamonga, CA 4.4 mi
91763 Montclair, CA 5.3 mi

Find every ZIP code within 10 miles of 91764 →

Questions about this ZIP code

Where is ZIP code 91764?

91764 is in Ontario, California, in San Bernardino County, part of the Riverside-San Bernardino-Ontario, CA metropolitan area. Its published point location is 34.0741, -117.6056.

What county is 91764 in?

91764 lies in San Bernardino County.

What area code is 91764?

Ontario uses area codes 909 and 840, from NANPA's telephone records.

What time zone is 91764 in?

91764 uses America/Los_Angeles.

How many people live in 91764?

About 56,270 people live in ZIP code 91764, in 16,624 households, at 7,116.5 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 91764?

$81,762 a year, against $99,122 across California.

What ZIP codes are near 91764?

The closest are 91743 (1.3 mi), 91730 (2.3 mi), 91729 (2.3 mi), 91758 (2.7 mi) and 91761 (2.8 mi).

Is 91764 a PO Box ZIP code?

91764 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91764 ZIP Code — Ontario, California (San Bernardino County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91764

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