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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/87731

87731

ZIP 87731 is Montezuma, New Mexico, in San Miguel County; Mountain time.

Type
Standard
Time zone
America/Denver
County
San Miguel
Metro area
Las Vegas, NM
Population
355
Coordinates
35.7008, -105.3990
☼ Live from 87731 — Montezuma, NM

Weather right now

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Local time: —

Where 87731 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 87731
  • 🔢 Type 87731 into a pocket calculator and turn it upside down: IELLB — not quite a word, sorry.
  • ➕ As a number, 87,731 = 7 × 83 × 151. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10101011010110011
  • 🏠 Its numerical neighbours: 87730 (Mills, NM, 71 mi away) and 87732 (Mora, NM, 19 mi away).
  • 🔄 Backwards, 87731 becomes 13778 — and that is a real ZIP code: Greene, NY, 1,647 miles away.
  • 👥 24 other ZIP codes are made of exactly the same digits (13778, 13787, 17837, 18773, 31778, 31787, …). The farthest-flung twin is 13787 in Harpursville, NY, 1,650 miles away.
  • 🧭 Farther south than 71% of all ZIP codes, and farther west than 83%.
  • 🎯469 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 87731 and you would come out at 35.70°S, 74.60°E — 969 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 35m of daylight. Shortest: 9h 44m.
  • 📏 At 77.7 square miles of land, 87731 is bigger than 72% of ZIP codes — room for about 59 Central Parks.
🌙 The sky over 87731 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population355This ZIP355
Households107This ZIP107
Housing units183This ZIP183
Median age34.2This ZIP34.2New Mexico39.4US 38.9
Median home value$172,800This ZIP$172,800New Mexico$248,100US $332,700
Bachelor's degree or higher5.2%This ZIP5.2%
Population density4.6 / sq miThis ZIP4.6 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees119This ZIP119
Annual payroll$6,254,000This ZIP$6,254,000
Tax returns filed140This ZIP140
Total adjusted gross income$6,533,000This ZIP$6,533,000

Land area

Land area77.65 sq miThis ZIP77.65 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

ZIP codes near 87731

ZIPCityDistance
87745 Sapello, NM 9.7 mi
87742 Rociada, NM 12.1 mi
87552 Pecos, NM 12.2 mi
87565 San Jose, NM 13.4 mi
87538 Ilfeld, NM 16.3 mi
87573 Tererro, NM 18.0 mi
87712 Buena Vista, NM 18.1 mi
87732 Mora, NM 19.4 mi
87715 Cleveland, NM 21.5 mi
87535 Glorieta, NM 21.6 mi

Find every ZIP code within 10 miles of 87731 →

Questions about this ZIP code

Where is ZIP code 87731?

87731 is in Montezuma, New Mexico, in San Miguel County, part of the Las Vegas, NM micropolitan area. Its published point location is 35.7008, -105.3990.

What county is 87731 in?

87731 lies in San Miguel County.

What time zone is 87731 in?

87731 uses America/Denver.

How many people live in 87731?

About 355 people live in ZIP code 87731, in 107 households, at 4.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 87731?

The closest are 87745 (9.7 mi), 87742 (12.1 mi), 87552 (12.2 mi), 87565 (13.4 mi) and 87538 (16.3 mi).

Is 87731 a PO Box ZIP code?

87731 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “87731 ZIP Code — Montezuma, New Mexico (San Miguel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/87731

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