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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/12955

12955

ZIP 12955 is in Lyon Mountain, New York, in Clinton County; area codes 838 and 518; Eastern time. Lyon Mountain has 2 ZIP codes; the other is 12952.

Type
Standard
Time zone
America/New_York
County
Clinton
Metro area
Plattsburgh, NY
Population
503
Coordinates
44.7804, -73.9442
☼ Live from 12955 — Lyon Mountain, NY

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Local time: —

Where 12955 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 12955
  • 🔢 Type 12955 into a pocket calculator and turn it upside down: SSGZI — not quite a word, sorry.
  • ➕ As a number, 12,955 = 5 × 2591. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11001010011011
  • 🏠 Its numerical neighbours: 12953 (Malone, NY, 16 mi away) and 12956 (Mineville, NY, 52 mi away).
  • 🔄 Backwards, 12955 becomes 55921 — and that is a real ZIP code: Caledonia, MN, 870 miles away.
  • 👥 26 other ZIP codes are made of exactly the same digits (15259, 15295, 15925, 15952, 19255, 19525, …). The farthest-flung twin is 95125 in San Jose, CA, 2,514 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther east than 91%.
  • 🎯1,299 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12955 and you would come out at 44.78°S, 106.06°E — 1,032 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 35m of daylight. Shortest: 8h 47m.
  • 📏 At 23.6 square miles of land, 12955 is bigger than 41% of ZIP codes — room for about 18 Central Parks.
🌙 The sky over 12955 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population503This ZIP503
Households225This ZIP225
Housing units412This ZIP412
Median age47.6This ZIP47.6New York39.8US 38.9
Median household income$78,487This ZIP$78,487New York$85,974US $80,734
Median home value$164,200This ZIP$164,200New York$423,800US $332,700
Median gross rent$941This ZIP$941New York$1,621US $1,413
Bachelor's degree or higher25.3%This ZIP25.3%
Mean commute32.7 minThis ZIP32.7 min
Population density21.3 / sq miThis ZIP21.3 / sq mi

Business and tax activity

Business establishments5This ZIP5
Employees21This ZIP21
Annual payroll$1,253,000This ZIP$1,253,000
Tax returns filed180This ZIP180
Total adjusted gross income$11,052,000This ZIP$11,052,000

Land area

Land area23.61 sq miThis ZIP23.61 sq mi
Water area0.46 sq miThis ZIP0.46 sq mi

Other place names in 12955

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 12955

ZIPCityDistance
12934 Ellenburg Center, NY 4.5 mi
12952 Lyon Mountain, NY 5.2 mi
12915 Brainardsville, NY 6.7 mi
12935 Ellenburg Depot, NY 8.5 mi
12969 Owls Head, NY 8.9 mi
12933 Ellenburg, NY 9.0 mi
12920 Chateaugay, NY 9.4 mi
12923 Churubusco, NY 11.4 mi
12981 Saranac, NY 11.6 mi
12929 Dannemora, NY 11.8 mi

Find every ZIP code within 10 miles of 12955 →

Questions about this ZIP code

Where is ZIP code 12955?

12955 is in Lyon Mountain, New York, in Clinton County, part of the Plattsburgh, NY micropolitan area. Its published point location is 44.7804, -73.9442.

What county is 12955 in?

12955 lies in Clinton County.

What area code is 12955?

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

What time zone is 12955 in?

12955 uses America/New_York.

How many people live in 12955?

About 503 people live in ZIP code 12955, in 225 households, at 21.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 12955?

$78,487 a year, against $85,974 across New York.

What ZIP codes are near 12955?

The closest are 12934 (4.5 mi), 12952 (5.2 mi), 12915 (6.7 mi), 12935 (8.5 mi) and 12969 (8.9 mi).

Is 12955 a PO Box ZIP code?

12955 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “12955 ZIP Code — Lyon Mountain, New York (Clinton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12955

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