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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/12604

12604

ZIP 12604 is in Poughkeepsie, New York, in Dutchess County; area codes 845, 914 and 329; Eastern time. Poughkeepsie has 4 ZIP codes; the others are 12601, 12602 and 12603.

Type
Standard
Time zone
America/New_York
County
Dutchess
Population
2,316
Coordinates
41.6884, -73.8945
☼ Live from 12604 — Poughkeepsie, NY

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Where 12604 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 12604
  • 🔢 Type 12604 into a pocket calculator and turn it upside down: hOgZI — not quite a word, sorry.
  • ➕ As a number, 12,604 = 2 × 2 × 23 × 137. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000100111100
  • 🏠 Its numerical neighbours: 12603 (Poughkeepsie, NY, 2 mi away) and 12701 (Monticello, NY, 42 mi away).
  • 🔄 Backwards, 12604 becomes 40621 — and that is a real ZIP code: Frankfort, KY, 629 miles away.
  • 👥 66 other ZIP codes are made of exactly the same digits (01264, 01462, 02461, 02641, 04216, 04261, …). The farthest-flung twin is 64012 in Belton, MO, 1,105 miles away.
  • 🧭 Farther north than 73% of all ZIP codes, and farther east than 91%.
  • 🎯1,294 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12604 and you would come out at 41.69°S, 106.11°E — 861 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
  • 📏 At 0.187 square miles of land, 12604 is bigger than 2% of ZIP codes — about 91 football fields.
🌙 The sky over 12604 today
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🌋 Shake report
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Source: USGS.

People and housing

Population2,316This ZIP2,316
Households65This ZIP65
Housing units65This ZIP65
Median age20.3This ZIP20.3New York39.8US 38.9
Bachelor's degree or higher0.0%
Mean commute9.1 minThis ZIP9.1 min
Population density12,385.0 / sq miThis ZIP12,385.0 / sq mi

Business and tax activity

Business establishments8This ZIP8
Employees3,165This ZIP3,165
Annual payroll$109,198,000This ZIP$109,198,000

Land area

Land area0.19 sq miThis ZIP0.19 sq mi
Water area0.00 sq mi

Other place names in 12604

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

ZIP codes near 12604

ZIPCityDistance
12601 Poughkeepsie, NY 1.6 mi
12603 Poughkeepsie, NY 1.8 mi
12547 Milton, NY 5.1 mi
12528 Highland, NY 5.5 mi
12569 Pleasant Valley, NY 6.1 mi
12590 Wappingers Falls, NY 6.4 mi
12510 Billings, NY 6.9 mi
12538 Hyde Park, NY 7.2 mi
12537 Hughsonville, NY 7.6 mi
12542 Marlboro, NY 8.1 mi

Find every ZIP code within 10 miles of 12604 →

Questions about this ZIP code

Where is ZIP code 12604?

12604 is in Poughkeepsie, New York, in Dutchess County, part of the Kiryas Joel-Poughkeepsie-Newburgh, NY metropolitan area. Its published point location is 41.6884, -73.8945.

What county is 12604 in?

12604 lies in Dutchess County.

What area code is 12604?

Poughkeepsie uses area codes 845, 914 and 329, from NANPA's telephone records.

What time zone is 12604 in?

12604 uses America/New_York.

How many people live in 12604?

About 2,316 people live in ZIP code 12604, in 65 households, at 12,385.0 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 12604?

The closest are 12601 (1.6 mi), 12603 (1.8 mi), 12547 (5.1 mi), 12528 (5.5 mi) and 12569 (6.1 mi).

Is 12604 a PO Box ZIP code?

12604 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “12604 ZIP Code — Poughkeepsie, New York (Dutchess County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12604

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