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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/91748

91748

ZIP 91748 is Rowland Heights, California, in Los Angeles County; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
42,463
Coordinates
33.9783, -117.9023
☼ Live from 91748 — Rowland Heights, CA

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Local time: —

Where 91748 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 91748
  • 🔢 Type 91748 into a pocket calculator and turn it upside down: BhLIG — not quite a word, sorry.
  • ➕ As a number, 91,748 = 2 × 2 × 22937. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011001100100
  • 🏠 Its numerical neighbours: 91747 (La Puente, CA, 4 mi away) and 91749 (La Puente, CA, 4 mi away).
  • 🔄 Backwards, 91748 becomes 84719 — and that is a real ZIP code: Brian Head, UT, 383 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (14879, 14897, 17948, 18947, 18974, 19478, …). The farthest-flung twin is 18974 in Warminster, PA, 2,376 miles away.
  • 🧭 Farther south than 79% of all ZIP codes, and farther west than 91%.
  • 🎯1,139 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91748 and you would come out at 33.98°S, 62.10°E — 992 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 25m of daylight. Shortest: 9h 53m.
  • 📏 At 14.2 square miles of land, 91748 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
🌙 The sky over 91748 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population42,463This ZIP42,463
Households13,965This ZIP13,965
Housing units14,504This ZIP14,504
Median age46.4This ZIP46.4California37.9US 38.9
Median household income$83,428This ZIP$83,428California$99,122US $80,734
Median home value$830,800This ZIP$830,800California$734,700US $332,700
Median gross rent$1,962This ZIP$1,962California$2,036US $1,413
Bachelor's degree or higher34.9%This ZIP34.9%
Mean commute33.0 minThis ZIP33.0 min
Population density2,995.4 / sq miThis ZIP2,995.4 / sq mi

Business and tax activity

Business establishments2,827This ZIP2,827
Employees28,625This ZIP28,625
Annual payroll$1,667,380,000This ZIP$1,667,380,000
Tax returns filed22,210This ZIP22,210
Total adjusted gross income$1,724,328,000This ZIP$1,724,328,000

Land area

Land area14.18 sq miThis ZIP14.18 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 91748

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

ZIP codes near 91748

ZIPCityDistance
91792 West Covina, CA 3.1 mi
91788 Walnut, CA 3.6 mi
90631 La Habra, CA 3.8 mi
91789 Walnut, CA 3.9 mi
90633 La Habra, CA 3.9 mi
91747 La Puente, CA 4.0 mi
91749 La Puente, CA 4.0 mi
91744 La Puente, CA 4.2 mi
92822 Brea, CA 4.2 mi
92821 Brea, CA 4.2 mi

Find every ZIP code within 10 miles of 91748 →

Questions about this ZIP code

Where is ZIP code 91748?

91748 is in Rowland Heights, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 33.9783, -117.9023.

What county is 91748 in?

91748 lies in Los Angeles County.

What time zone is 91748 in?

91748 uses America/Los_Angeles.

How many people live in 91748?

About 42,463 people live in ZIP code 91748, in 13,965 households, at 2,995.4 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 91748?

$83,428 a year, against $99,122 across California.

What ZIP codes are near 91748?

The closest are 91792 (3.1 mi), 91788 (3.6 mi), 90631 (3.8 mi), 91789 (3.9 mi) and 90633 (3.9 mi).

Is 91748 a PO Box ZIP code?

91748 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91748 ZIP Code — Rowland Heights, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91748

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