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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/10573

10573

ZIP 10573 is Port Chester, New York, in Westchester County; area code 914; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westchester
Population
40,786
Coordinates
41.0157, -73.6773
☼ Live from 10573 — Port Chester, NY

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Local time: —

Where 10573 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 10573
  • 🔢 Type 10573 into a pocket calculator and turn it upside down: ELSOI — not quite a word, sorry.
  • ➕ As a number, 10,573 = 97 × 109. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100101001101
  • 🏠 Its numerical neighbours: 10570 (Pleasantville, NY, 10 mi away) and 10576 (Pound Ridge, NY, 15 mi away).
  • 🔄 Backwards, 10573 becomes 37501 — and that is a real ZIP code: Memphis, TN, 973 miles away.
  • 👥 52 other ZIP codes are made of exactly the same digits (01375, 01537, 03751, 05731, 07513, 10537, …). The farthest-flung twin is 73015 in Carnegie, OK, 1,411 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther east than 92%.
  • 🎯1,308 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 10573 and you would come out at 41.02°S, 106.32°E — 819 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
  • 📏 At 5.5 square miles of land, 10573 is bigger than 20% of ZIP codes — room for about 4.2 Central Parks.
🌙 The sky over 10573 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population40,786This ZIP40,786
Households14,412This ZIP14,412
Housing units14,910This ZIP14,910
Median age39.6This ZIP39.6New York39.8US 38.9
Median household income$105,686This ZIP$105,686New York$85,974US $80,734
Median home value$662,900This ZIP$662,900New York$423,800US $332,700
Median gross rent$2,062This ZIP$2,062New York$1,621US $1,413
Bachelor's degree or higher46.4%This ZIP46.4%
Mean commute27.9 minThis ZIP27.9 min
Population density7,459.0 / sq miThis ZIP7,459.0 / sq mi

Business and tax activity

Business establishments1,339This ZIP1,339
Employees12,944This ZIP12,944
Annual payroll$1,057,937,000This ZIP$1,057,937,000
Tax returns filed19,620This ZIP19,620
Total adjusted gross income$2,387,765,000This ZIP$2,387,765,000

Land area

Land area5.47 sq miThis ZIP5.47 sq mi
Water area0.11 sq miThis ZIP0.11 sq mi

Other place names in 10573

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

ZIP codes near 10573

ZIPCityDistance
10577 Purchase, NY 2.3 mi
06836 Greenwich, CT 2.7 mi
10580 Rye, NY 2.7 mi
06830 Greenwich, CT 3.1 mi
10605 White Plains, NY 3.6 mi
10528 Harrison, NY 3.8 mi
10602 White Plains, NY 4.6 mi
10601 White Plains, NY 4.7 mi
06878 Riverside, CT 5.0 mi
06831 Greenwich, CT 5.1 mi

Find every ZIP code within 10 miles of 10573 →

Questions about this ZIP code

Where is ZIP code 10573?

10573 is in Port Chester, New York, in Westchester County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.0157, -73.6773.

What county is 10573 in?

10573 lies in Westchester County.

What area code is 10573?

Port Chester uses area code 914, from NANPA's telephone records.

What time zone is 10573 in?

10573 uses America/New_York.

How many people live in 10573?

About 40,786 people live in ZIP code 10573, in 14,412 households, at 7,459.0 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 10573?

$105,686 a year, against $85,974 across New York.

What ZIP codes are near 10573?

The closest are 10577 (2.3 mi), 06836 (2.7 mi), 10580 (2.7 mi), 06830 (3.1 mi) and 10605 (3.6 mi).

Is 10573 a PO Box ZIP code?

10573 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “10573 ZIP Code — Port Chester, New York (Westchester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/10573

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