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/91118

91118

ZIP 91118 is in San Marino, California, in Los Angeles County; area codes 626, 818 and 747; Pacific time. San Marino has 2 ZIP codes; the other is 91108.

Type
No street area
Time zone
America/Los_Angeles
County
Los Angeles
Coordinates
34.1214, -118.1065

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 91108, whose figures describe that area — not this ZIP code.

☼ Live from 91118 — San Marino, CA

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Where 91118 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 91118
  • 🔢 Type 91118 into a pocket calculator and turn it upside down: BIIIG — not quite a word, sorry.
  • ➕ As a number, 91,118 = 2 × 29 × 1571. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110001111101110
  • 🏠 Its numerical neighbours: 91117 (Pasadena, CA, 3 mi away) and 91121 (Pasadena, CA, 3 mi away).
  • 🔄 Backwards, 91118 becomes 81119, which is not a ZIP code at all.
  • 👥 6 other ZIP codes are made of exactly the same digits (11819, 18911, 19118, 19181, 89111, 98111). The farthest-flung twin is 11819 in Hicksville, NY, 2,461 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 91%.
  • 🎯1,145 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91118 and you would come out at 34.12°S, 61.89°E — 996 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 91118 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments3This ZIP3
Employees2This ZIP2
Annual payroll$89,000This ZIP$89,000

Land area

ZIP codes near 91118

ZIPCityDistance
91108 San Marino, CA 0.4 mi
91775 San Gabriel, CA 1.1 mi
91125 Pasadena, CA 1.5 mi
91778 San Gabriel, CA 1.7 mi
91106 Pasadena, CA 1.8 mi
91802 Alhambra, CA 2.2 mi
91804 Alhambra, CA 2.2 mi
91896 Alhambra, CA 2.2 mi
91899 Alhambra, CA 2.2 mi
91776 San Gabriel, CA 2.3 mi

Find every ZIP code within 10 miles of 91118 →

Questions about this ZIP code

Where is ZIP code 91118?

91118 is in San Marino, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.1214, -118.1065.

What county is 91118 in?

91118 lies in Los Angeles County.

What area code is 91118?

San Marino uses area codes 626, 818 and 747, from NANPA's telephone records.

What time zone is 91118 in?

91118 uses America/Los_Angeles.

What ZIP codes are near 91118?

The closest are 91108 (0.4 mi), 91775 (1.1 mi), 91125 (1.5 mi), 91778 (1.7 mi) and 91106 (1.8 mi).

Is 91118 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.

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Cite this page

zipcodes.pro. “91118 ZIP Code — San Marino, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91118

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91118.json

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