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/91733

91733

ZIP 91733 is South El Monte, California, in Los Angeles County; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
41,255
Coordinates
34.0458, -118.0538
☼ Live from 91733 — South El Monte, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 91733 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 91733
  • 🔢 Type 91733 into a pocket calculator and turn it upside down: EELIG — not quite a word, sorry.
  • ➕ 91733 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011001010101
  • 🏠 Its numerical neighbours: 91732 (El Monte, CA, 3 mi away) and 91734 (El Monte, CA, 2 mi away).
  • 🔄 Backwards, 91733 becomes 33719, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (13739, 17339, 17933, 19373, 19733, 31739, …). The farthest-flung twin is 13739 in Bloomville, NY, 2,391 miles away.
  • 🧭 Farther south than 79% of all ZIP codes, and farther west than 91%.
  • 🎯1,144 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91733 and you would come out at 34.05°S, 61.95°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 6.7 square miles of land, 91733 is bigger than 22% of ZIP codes — room for about 5.1 Central Parks.
🌙 The sky over 91733 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population41,255This ZIP41,255
Households10,922This ZIP10,922
Housing units11,279This ZIP11,279
Median age38.2This ZIP38.2California37.9US 38.9
Median household income$68,278This ZIP$68,278California$99,122US $80,734
Median home value$621,800This ZIP$621,800California$734,700US $332,700
Median gross rent$1,681This ZIP$1,681California$2,036US $1,413
Bachelor's degree or higher11.7%This ZIP11.7%
Mean commute27.3 minThis ZIP27.3 min
Population density6,114.6 / sq miThis ZIP6,114.6 / sq mi

Business and tax activity

Business establishments1,852This ZIP1,852
Employees18,790This ZIP18,790
Annual payroll$1,057,025,000This ZIP$1,057,025,000
Tax returns filed18,380This ZIP18,380
Total adjusted gross income$852,232,000This ZIP$852,232,000

Land area

Land area6.75 sq miThis ZIP6.75 sq mi
Water area0.34 sq miThis ZIP0.34 sq mi

Other place names in 91733

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

ZIP codes near 91733

ZIPCityDistance
91770 Rosemead, CA 2.1 mi
91734 El Monte, CA 2.2 mi
91735 El Monte, CA 2.2 mi
91731 El Monte, CA 2.3 mi
91771 Rosemead, CA 2.6 mi
91772 Rosemead, CA 2.6 mi
91732 El Monte, CA 2.9 mi
90601 Whittier, CA 2.9 mi
91755 Monterey Park, CA 3.5 mi
91776 San Gabriel, CA 3.8 mi

Find every ZIP code within 10 miles of 91733 →

Questions about this ZIP code

Where is ZIP code 91733?

91733 is in South El Monte, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.0458, -118.0538.

What county is 91733 in?

91733 lies in Los Angeles County.

What time zone is 91733 in?

91733 uses America/Los_Angeles.

How many people live in 91733?

About 41,255 people live in ZIP code 91733, in 10,922 households, at 6,114.6 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 91733?

$68,278 a year, against $99,122 across California.

What ZIP codes are near 91733?

The closest are 91770 (2.1 mi), 91734 (2.2 mi), 91735 (2.2 mi), 91731 (2.3 mi) and 91771 (2.6 mi).

Is 91733 a PO Box ZIP code?

91733 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “91733 ZIP Code — South El Monte, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91733

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91733.json

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