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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/91899

91899

ZIP 91899 is in Alhambra, California, in Los Angeles County; area code 626; Pacific time. Alhambra has 6 ZIP codes; the others are 91801, 91802, 91803, 91804 and 91896.

Type
No street area
Time zone
America/Los_Angeles
County
Los Angeles
Coordinates
34.0953, -118.1270

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 91801, whose figures describe that area — not this ZIP code.

☼ Live from 91899 — Alhambra, CA

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Where 91899 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 91899
  • 🔢 Type 91899 into a pocket calculator and turn it upside down: GGBIG — not quite a word, sorry.
  • ➕ As a number, 91,899 = 3 × 3 × 10211. Its digits add up to 36, a total 149 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011011111011
  • 🏠 Its numerical neighbours: 91896 (Alhambra, CA, 0 mi away) and 91901 (Alpine, CA, 120 mi away).
  • 🔄 Backwards, 91899 becomes 99819, which is not a ZIP code at all.
  • 👥 4 other ZIP codes are made of exactly the same digits (19899, 89199, 98199, 99918). The farthest-flung twin is 19899 in Wilmington, DE, 2,362 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 91%.
  • 🎯1,147 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91899 and you would come out at 34.10°S, 61.87°E — 994 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 53m.
🌙 The sky over 91899 today
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Source: USGS.

Land area

ZIP codes near 91899

ZIPCityDistance
91802 Alhambra, CA 0.0 mi
91804 Alhambra, CA 0.0 mi
91896 Alhambra, CA 0.0 mi
91801 Alhambra, CA 0.3 mi
91778 San Gabriel, CA 1.2 mi
91803 Alhambra, CA 1.8 mi
91776 San Gabriel, CA 1.9 mi
91030 South Pasadena, CA 1.9 mi
91031 South Pasadena, CA 2.0 mi
91108 San Marino, CA 2.0 mi

Find every ZIP code within 10 miles of 91899 →

Questions about this ZIP code

Where is ZIP code 91899?

91899 is in Alhambra, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.0953, -118.1270.

What county is 91899 in?

91899 lies in Los Angeles County.

What area code is 91899?

Alhambra uses area code 626, from NANPA's telephone records.

What time zone is 91899 in?

91899 uses America/Los_Angeles.

What ZIP codes are near 91899?

The closest are 91802 (0 mi), 91804 (0 mi), 91896 (0 mi), 91801 (0.3 mi) and 91778 (1.2 mi).

Is 91899 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. “91899 ZIP Code — Alhambra, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91899

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curl https://zipcodes.pro/zip/91899.json

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