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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/12503

12503

ZIP 12503 is Ancramdale, New York, in Columbia County; area code 518; Eastern time.

Type
Standard
Time zone
America/New_York
County
Columbia
Metro area
Hudson, NY
Population
732
Coordinates
42.0360, -73.5801
☼ Live from 12503 — Ancramdale, NY

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Local time: —

Where 12503 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 12503
  • 🔢 Type 12503 into a pocket calculator and turn it upside down: EOSZI — not quite a word, sorry.
  • ➕ 12503 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 11, a total 714 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000011010111
  • 🏠 Its numerical neighbours: 12502 (Ancram, NY, 6 mi away) and 12504 (Annandale On Hudson, NY, 17 mi away).
  • 🔄 Backwards, 12503 becomes 30521 — and that is a real ZIP code: Carnesville, GA, 747 miles away.
  • 👥 73 other ZIP codes are made of exactly the same digits (01235, 01253, 01523, 01532, 02135, 02153, …). The farthest-flung twin is 51023 in Hawarden, IA, 1,164 miles away.
  • 🧭 Farther north than 75% of all ZIP codes, and farther east than 92%.
  • 🎯1,309 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12503 and you would come out at 42.04°S, 106.42°E — 869 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 15m of daylight. Shortest: 9h 06m.
  • 📏 At 22.2 square miles of land, 12503 is bigger than 39% of ZIP codes — room for about 17 Central Parks.
🌙 The sky over 12503 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population732This ZIP732
Households298This ZIP298
Housing units548This ZIP548
Median age49.9This ZIP49.9New York39.8US 38.9
Median household income$117,935This ZIP$117,935New York$85,974US $80,734
Median home value$506,500This ZIP$506,500New York$423,800US $332,700
Median gross rent$1,052This ZIP$1,052New York$1,621US $1,413
Bachelor's degree or higher50.1%This ZIP50.1%
Mean commute35.8 minThis ZIP35.8 min
Population density32.9 / sq miThis ZIP32.9 / sq mi

Business and tax activity

Business establishments17This ZIP17
Employees57This ZIP57
Annual payroll$2,462,000This ZIP$2,462,000
Tax returns filed340This ZIP340
Total adjusted gross income$41,200,000This ZIP$41,200,000

Land area

Land area22.23 sq miThis ZIP22.23 sq mi
Water area0.17 sq miThis ZIP0.17 sq mi

ZIP codes near 12503

ZIPCityDistance
12567 Pine Plains, NY 5.2 mi
12516 Copake, NY 5.2 mi
12502 Ancram, NY 5.6 mi
12546 Millerton, NY 6.7 mi
01258 South Egremont, MA 6.8 mi
12517 Copake Falls, NY 7.4 mi
06068 Salisbury, CT 8.3 mi
06039 Lakeville, CT 8.6 mi
06079 Taconic, CT 9.4 mi
12523 Elizaville, NY 9.9 mi

Find every ZIP code within 10 miles of 12503 →

Questions about this ZIP code

Where is ZIP code 12503?

12503 is in Ancramdale, New York, in Columbia County, part of the Hudson, NY micropolitan area. Its published point location is 42.0360, -73.5801.

What county is 12503 in?

12503 lies in Columbia County.

What area code is 12503?

Ancramdale uses area code 518, from NANPA's telephone records.

What time zone is 12503 in?

12503 uses America/New_York.

How many people live in 12503?

About 732 people live in ZIP code 12503, in 298 households, at 32.9 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 12503?

$117,935 a year, against $85,974 across New York.

What ZIP codes are near 12503?

The closest are 12567 (5.2 mi), 12516 (5.2 mi), 12502 (5.6 mi), 12546 (6.7 mi) and 01258 (6.8 mi).

Is 12503 a PO Box ZIP code?

12503 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “12503 ZIP Code — Ancramdale, New York (Columbia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12503

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