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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/12181

12181

ZIP 12181 is in Troy, New York, in Rensselaer County; area codes 518 and 838; Eastern time. Troy has 4 ZIP codes; the others are 12180, 12182 and 12183.

Type
No street area
Time zone
America/New_York
County
Rensselaer
Coordinates
42.7387, -73.6739

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 12180, whose figures describe that area — not this ZIP code.

☼ Live from 12181 — Troy, NY

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Where 12181 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 12181
  • 🔢 Type 12181 into a pocket calculator and turn it upside down: IBIZI — not quite a word, sorry.
  • ➕ As a number, 12,181 = 13 × 937. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111110010101
  • 🏠 Its numerical neighbours: 12180 (Troy, NY, 4 mi away) and 12182 (Troy, NY, 5 mi away).
  • 🔄 Backwards, 12181 becomes 18121, which is not a ZIP code at all.
  • 👥 8 other ZIP codes are made of exactly the same digits (11218, 12118, 12811, 18211, 21811, 28111, …). The farthest-flung twin is 81121 in Arboles, CO, 1,820 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 92%.
  • 🎯1,304 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12181 and you would come out at 42.74°S, 106.33°E — 910 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 20m of daylight. Shortest: 9h 02m.
🌙 The sky over 12181 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments12This ZIP12
Employees221This ZIP221
Annual payroll$13,738,000This ZIP$13,738,000

Land area

ZIP codes near 12181

ZIPCityDistance
12183 Troy, NY 1.1 mi
12189 Watervliet, NY 2.2 mi
12180 Troy, NY 3.8 mi
12047 Cohoes, NY 4.1 mi
12204 Albany, NY 4.5 mi
12128 Newtonville, NY 4.7 mi
12182 Troy, NY 4.9 mi
12211 Albany, NY 4.9 mi
12198 Wynantskill, NY 5.0 mi
12110 Latham, NY 5.2 mi

Find every ZIP code within 10 miles of 12181 →

Questions about this ZIP code

Where is ZIP code 12181?

12181 is in Troy, New York, in Rensselaer County, part of the Albany-Schenectady-Troy, NY metropolitan area. Its published point location is 42.7387, -73.6739.

What county is 12181 in?

12181 lies in Rensselaer County.

What area code is 12181?

Troy uses area codes 518 and 838, from NANPA's telephone records.

What time zone is 12181 in?

12181 uses America/New_York.

What ZIP codes are near 12181?

The closest are 12183 (1.1 mi), 12189 (2.2 mi), 12180 (3.8 mi), 12047 (4.1 mi) and 12204 (4.5 mi).

Is 12181 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. “12181 ZIP Code — Troy, New York (Rensselaer County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12181

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/12181.json

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