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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/10538

10538

ZIP 10538 is Larchmont, New York, in Westchester County; area code 914; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westchester
Population
17,760
Coordinates
40.9378, -73.7565
☼ Live from 10538 — Larchmont, NY

Weather right now

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Local time: —

Where 10538 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 10538
  • 🔢 Type 10538 into a pocket calculator and turn it upside down: BESOI — not quite a word, sorry.
  • ➕ As a number, 10,538 = 2 × 11 × 479. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100100101010
  • 🏠 Its numerical neighbours: 10537 (Lake Peekskill, NY, 29 mi away) and 10540 (Lincolndale, NY, 27 mi away).
  • 🔄 Backwards, 10538 becomes 83501 — and that is a real ZIP code: Lewiston, ID, 2,164 miles away.
  • 👥 55 other ZIP codes are made of exactly the same digits (01538, 01583, 01835, 01853, 03581, 03815, …). The farthest-flung twin is 83501 in Lewiston, ID, 2,164 miles away.
  • 🧭 Farther north than 66% of all ZIP codes, and farther east than 91%.
  • 🎯1,304 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 10538 and you would come out at 40.94°S, 106.24°E — 818 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
  • 📏 At 3.5 square miles of land, 10538 is bigger than 16% of ZIP codes — room for about 2.7 Central Parks.
🌙 The sky over 10538 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population17,760This ZIP17,760
Households6,743This ZIP6,743
Housing units7,070This ZIP7,070
Median age41.1This ZIP41.1New York39.8US 38.9
Median household income$207,969This ZIP$207,969New York$85,974US $80,734
Median home value$1,266,600This ZIP$1,266,600New York$423,800US $332,700
Median gross rent$2,236This ZIP$2,236New York$1,621US $1,413
Bachelor's degree or higher82.5%This ZIP82.5%
Mean commute39.0 minThis ZIP39.0 min
Population density5,054.1 / sq miThis ZIP5,054.1 / sq mi

Business and tax activity

Business establishments631This ZIP631
Employees4,138This ZIP4,138
Annual payroll$310,327,000This ZIP$310,327,000
Tax returns filed8,260This ZIP8,260
Total adjusted gross income$4,695,043,000This ZIP$4,695,043,000

Land area

Land area3.51 sq miThis ZIP3.51 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 10538

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

ZIP codes near 10538

ZIPCityDistance
10543 Mamaroneck, NY 1.5 mi
10804 New Rochelle, NY 1.8 mi
10801 New Rochelle, NY 2.0 mi
10802 New Rochelle, NY 2.3 mi
10709 Eastchester, NY 2.9 mi
10528 Harrison, NY 3.1 mi
10805 New Rochelle, NY 3.6 mi
10803 Pelham, NY 3.7 mi
10552 Mount Vernon, NY 3.7 mi
10707 Tuckahoe, NY 3.8 mi

Find every ZIP code within 10 miles of 10538 →

Questions about this ZIP code

Where is ZIP code 10538?

10538 is in Larchmont, New York, in Westchester County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.9378, -73.7565.

What county is 10538 in?

10538 lies in Westchester County.

What area code is 10538?

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

What time zone is 10538 in?

10538 uses America/New_York.

How many people live in 10538?

About 17,760 people live in ZIP code 10538, in 6,743 households, at 5,054.1 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 10538?

$207,969 a year, against $85,974 across New York.

What ZIP codes are near 10538?

The closest are 10543 (1.5 mi), 10804 (1.8 mi), 10801 (2 mi), 10802 (2.3 mi) and 10709 (2.9 mi).

Is 10538 a PO Box ZIP code?

10538 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “10538 ZIP Code — Larchmont, New York (Westchester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/10538

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