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/12423

12423

ZIP 12423 is East Durham, New York, in Greene County; area codes 518 and 838; Eastern time.

Type
Standard
Time zone
America/New_York
County
Greene
Metro area
none
Population
970
Coordinates
42.3797, -74.1114
☼ Live from 12423 — East Durham, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 12423 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 12423
  • 🔢 Type 12423 into a pocket calculator and turn it upside down: EZhZI — not quite a word, sorry.
  • ➕ As a number, 12,423 = 3 × 41 × 101. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000010000111
  • 🏠 Its numerical neighbours: 12422 (Durham, NY, 5 mi away) and 12424 (East Jewett, NY, 9 mi away).
  • 🔄 Backwards, 12423 becomes 32421 — and that is a real ZIP code: Altha, FL, 1,023 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (12234, 12243, 12432, 13224, 14223, 21234, …). The farthest-flung twin is 34212 in Bradenton, FL, 1,129 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 90%.
  • 🎯1,281 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12423 and you would come out at 42.38°S, 105.89°E — 904 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 10.7 square miles of land, 12423 is bigger than 28% of ZIP codes — room for about 8.1 Central Parks.
🌙 The sky over 12423 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population970This ZIP970
Households355This ZIP355
Housing units660This ZIP660
Median age40.4This ZIP40.4New York39.8US 38.9
Median household income$75,511This ZIP$75,511New York$85,974US $80,734
Median home value$232,100This ZIP$232,100New York$423,800US $332,700
Bachelor's degree or higher23.0%This ZIP23.0%
Mean commute27.4 minThis ZIP27.4 min
Population density90.6 / sq miThis ZIP90.6 / sq mi

Business and tax activity

Business establishments21This ZIP21
Employees449This ZIP449
Annual payroll$39,716,000This ZIP$39,716,000
Tax returns filed520This ZIP520
Total adjusted gross income$32,617,000This ZIP$32,617,000

Land area

Land area10.70 sq miThis ZIP10.70 sq mi
Water area0.00 sq mi

Other place names in 12423

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

ZIP codes near 12423

ZIPCityDistance
12418 Cornwallville, NY 2.9 mi
12460 Oak Hill, NY 4.5 mi
12431 Freehold, NY 4.6 mi
12405 Acra, NY 5.1 mi
12422 Durham, NY 5.3 mi
12083 Greenville, NY 5.3 mi
12120 Medusa, NY 6.0 mi
12413 Cairo, NY 6.6 mi
12454 Maplecrest, NY 6.7 mi
12470 Purling, NY 6.8 mi

Find every ZIP code within 10 miles of 12423 →

Questions about this ZIP code

Where is ZIP code 12423?

12423 is in East Durham, New York, in Greene County. Its published point location is 42.3797, -74.1114.

What county is 12423 in?

12423 lies in Greene County.

What area code is 12423?

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

What time zone is 12423 in?

12423 uses America/New_York.

How many people live in 12423?

About 970 people live in ZIP code 12423, in 355 households, at 90.6 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 12423?

$75,511 a year, against $85,974 across New York.

What ZIP codes are near 12423?

The closest are 12418 (2.9 mi), 12460 (4.5 mi), 12431 (4.6 mi), 12405 (5.1 mi) and 12422 (5.3 mi).

Is 12423 a PO Box ZIP code?

12423 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “12423 ZIP Code — East Durham, New York (Greene County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12423

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/12423.json

Underlying data is public domain or openly licensed — sources, vintages and licences.