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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/10566

10566

ZIP 10566 is Peekskill, New York, in Westchester County; area codes 914 and 845; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westchester
Population
25,625
Coordinates
41.2895, -73.9168
☼ Live from 10566 — Peekskill, NY

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Local time: —

Where 10566 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 10566
  • 🔢 Type 10566 into a pocket calculator and turn it upside down: ggSOI — not quite a word, sorry.
  • ➕ As a number, 10,566 = 2 × 3 × 3 × 587. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100101000110
  • 🏠 Its numerical neighbours: 10562 (Ossining, NY, 8 mi away) and 10567 (Cortlandt Manor, NY, 1 mi away).
  • 🔄 Backwards, 10566 becomes 66501 — and that is a real ZIP code: Mc Farland, KS, 1,185 miles away.
  • 👥 37 other ZIP codes are made of exactly the same digits (01566, 05661, 06156, 06516, 06615, 15066, …). The farthest-flung twin is 66501 in Mc Farland, KS, 1,185 miles away.
  • 🧭 Farther north than 69% 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 10566 and you would come out at 41.29°S, 106.08°E — 842 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
  • 📏 At 4.3 square miles of land, 10566 is bigger than 18% of ZIP codes — room for about 3.3 Central Parks.
🌙 The sky over 10566 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population25,625This ZIP25,625
Households10,777This ZIP10,777
Housing units11,572This ZIP11,572
Median age41.8This ZIP41.8New York39.8US 38.9
Median household income$85,954This ZIP$85,954New York$85,974US $80,734
Median home value$395,600This ZIP$395,600New York$423,800US $332,700
Median gross rent$2,036This ZIP$2,036New York$1,621US $1,413
Bachelor's degree or higher37.8%This ZIP37.8%
Mean commute37.2 minThis ZIP37.2 min
Population density5,901.7 / sq miThis ZIP5,901.7 / sq mi

Business and tax activity

Business establishments755This ZIP755
Employees5,527This ZIP5,527
Annual payroll$298,806,000This ZIP$298,806,000
Tax returns filed13,060This ZIP13,060
Total adjusted gross income$878,116,000This ZIP$878,116,000

Land area

Land area4.34 sq miThis ZIP4.34 sq mi
Water area0.23 sq miThis ZIP0.23 sq mi

Other place names in 10566

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

ZIP codes near 10566

ZIPCityDistance
10567 Cortlandt Manor, NY 1.1 mi
10511 Buchanan, NY 2.3 mi
10517 Crompond, NY 3.0 mi
10596 Verplanck, NY 3.2 mi
10548 Montrose, NY 3.3 mi
10521 Croton On Hudson, NY 3.8 mi
10547 Mohegan Lake, NY 4.0 mi
10537 Lake Peekskill, NY 4.2 mi
10986 Tomkins Cove, NY 4.3 mi
10911 Bear Mountain, NY 4.3 mi

Find every ZIP code within 10 miles of 10566 →

Questions about this ZIP code

Where is ZIP code 10566?

10566 is in Peekskill, New York, in Westchester County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.2895, -73.9168.

What county is 10566 in?

10566 lies in Westchester County.

What area code is 10566?

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

What time zone is 10566 in?

10566 uses America/New_York.

How many people live in 10566?

About 25,625 people live in ZIP code 10566, in 10,777 households, at 5,901.7 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 10566?

$85,954 a year, against $85,974 across New York.

What ZIP codes are near 10566?

The closest are 10567 (1.1 mi), 10511 (2.3 mi), 10517 (3 mi), 10596 (3.2 mi) and 10548 (3.3 mi).

Is 10566 a PO Box ZIP code?

10566 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “10566 ZIP Code — Peekskill, New York (Westchester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/10566

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