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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/10590

10590

ZIP 10590 is South Salem, New York, in Westchester County; area code 914; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westchester
Population
6,989
Coordinates
41.2562, -73.5379
☼ Live from 10590 — South Salem, NY

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Local time: —

Where 10590 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 10590
  • 🔢 Type 10590 into a pocket calculator and turn it upside down: OGSOI — not quite a word, sorry.
  • ➕ As a number, 10,590 = 2 × 3 × 5 × 353. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100101011110
  • 🏠 Its numerical neighbours: 10589 (Somers, NY, 10 mi away) and 10591 (Tarrytown, NY, 20 mi away).
  • 🔄 Backwards, 10590 becomes 09501, which is not a ZIP code at all.
  • 👥 25 other ZIP codes are made of exactly the same digits (00915, 00951, 01059, 01095, 01509, 01590, …). The farthest-flung twin is 95010 in Capitola, CA, 2,579 miles away.
  • 🧭 Farther north than 69% of all ZIP codes, and farther east than 92%.
  • 🎯1,314 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 10590 and you would come out at 41.26°S, 106.46°E — 827 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 09m of daylight. Shortest: 9h 12m.
  • 📏 At 13.3 square miles of land, 10590 is bigger than 31% of ZIP codes — room for about 10 Central Parks.
🌙 The sky over 10590 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,989This ZIP6,989
Households2,513This ZIP2,513
Housing units2,717This ZIP2,717
Median age48.1This ZIP48.1New York39.8US 38.9
Median household income$211,734This ZIP$211,734New York$85,974US $80,734
Median home value$795,600This ZIP$795,600New York$423,800US $332,700
Median gross rent$2,223This ZIP$2,223New York$1,621US $1,413
Bachelor's degree or higher71.4%This ZIP71.4%
Mean commute33.3 minThis ZIP33.3 min
Population density524.6 / sq miThis ZIP524.6 / sq mi

Business and tax activity

Business establishments187This ZIP187
Employees713This ZIP713
Annual payroll$39,977,000This ZIP$39,977,000
Tax returns filed3,300This ZIP3,300
Total adjusted gross income$799,299,000This ZIP$799,299,000

Land area

Land area13.32 sq miThis ZIP13.32 sq mi
Water area0.43 sq miThis ZIP0.43 sq mi

ZIP codes near 10590

ZIPCityDistance
06879 Ridgefield, CT 2.7 mi
10518 Cross River, NY 2.7 mi
10576 Pound Ridge, NY 3.0 mi
10597 Waccabuc, NY 4.0 mi
06877 Ridgefield, CT 4.7 mi
06829 Georgetown, CT 5.7 mi
06897 Wilton, CT 5.9 mi
10560 North Salem, NY 6.6 mi
10526 Goldens Bridge, NY 6.8 mi
06840 New Canaan, CT 6.9 mi

Find every ZIP code within 10 miles of 10590 →

Questions about this ZIP code

Where is ZIP code 10590?

10590 is in South Salem, New York, in Westchester County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.2562, -73.5379.

What county is 10590 in?

10590 lies in Westchester County.

What area code is 10590?

South Salem uses area code 914, from NANPA's telephone records.

What time zone is 10590 in?

10590 uses America/New_York.

How many people live in 10590?

About 6,989 people live in ZIP code 10590, in 2,513 households, at 524.6 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 10590?

$211,734 a year, against $85,974 across New York.

What ZIP codes are near 10590?

The closest are 06879 (2.7 mi), 10518 (2.7 mi), 10576 (3 mi), 10597 (4 mi) and 06877 (4.7 mi).

Is 10590 a PO Box ZIP code?

10590 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “10590 ZIP Code — South Salem, New York (Westchester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/10590

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