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/87545

87545

ZIP 87545 is in Los Alamos, New Mexico, in Los Alamos County; area code 505; Mountain time. Los Alamos has 2 ZIP codes; the other is 87544.

Type
No street area
Time zone
America/Denver
County
Los Alamos
Metro area
Los Alamos, NM
Coordinates
35.8639, -106.2953

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 87544, whose figures describe that area — not this ZIP code.

☼ Live from 87545 — Los Alamos, NM

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Where 87545 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 87545
  • 🔢 Type 87545 into a pocket calculator and turn it upside down: ShSLB — not quite a word, sorry.
  • ➕ As a number, 87,545 = 5 × 17509. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10101010111111001
  • 🏠 Its numerical neighbours: 87544 (Los Alamos, NM, 7 mi away) and 87547 (White Rock, NM, 6 mi away).
  • 🔄 Backwards, 87545 becomes 54578, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (45875, 47558, 47585, 47855, 48557, 48755, …). The farthest-flung twin is 48755 in Pigeon, MI, 1,334 miles away.
  • 🧭 Farther south than 70% of all ZIP codes, and farther west than 84%.
  • 🎯502 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 87545 and you would come out at 35.86°S, 73.70°E — 948 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 43m.
🌙 The sky over 87545 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments6This ZIP6
Employees13,371This ZIP13,371
Annual payroll$1,731,591,000This ZIP$1,731,591,000

Land area

ZIP codes near 87545

ZIPCityDistance
87547 White Rock, NM 6.1 mi
87544 Los Alamos, NM 6.7 mi
87532 Espanola, NM 12.9 mi
87533 Espanola, NM 15.4 mi
87083 Cochiti Lake, NM 15.6 mi
87567 Santa Cruz, NM 17.9 mi
87025 Jemez Springs, NM 18.1 mi
87041 Pena Blanca, NM 18.2 mi
87072 Cochiti Pueblo, NM 18.5 mi
87566 Ohkay Owingeh, NM 18.6 mi

Find every ZIP code within 10 miles of 87545 →

Questions about this ZIP code

Where is ZIP code 87545?

87545 is in Los Alamos, New Mexico, in Los Alamos County, part of the Los Alamos, NM micropolitan area. Its published point location is 35.8639, -106.2953.

What county is 87545 in?

87545 lies in Los Alamos County.

What area code is 87545?

Los Alamos uses area code 505, from NANPA's telephone records.

What time zone is 87545 in?

87545 uses America/Denver.

What ZIP codes are near 87545?

The closest are 87547 (6.1 mi), 87544 (6.7 mi), 87532 (12.9 mi), 87533 (15.4 mi) and 87083 (15.6 mi).

Is 87545 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. “87545 ZIP Code — Los Alamos, New Mexico (Los Alamos County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/87545

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/87545.json

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