Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/10549

10549

ZIP 10549 is Mount Kisco, New York, in Westchester County; area code 914; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westchester
Population
16,135
Coordinates
41.2006, -73.7235
☼ Live from 10549 — Mount Kisco, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 10549 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 10549
  • 🔢 Type 10549 into a pocket calculator and turn it upside down: GhSOI — not quite a word, sorry.
  • ➕ As a number, 10,549 = 7 × 11 × 137. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100100110101
  • 🏠 Its numerical neighbours: 10548 (Montrose, NY, 12 mi away) and 10550 (Mount Vernon, NY, 21 mi away).
  • 🔄 Backwards, 10549 becomes 94501 — and that is a real ZIP code: Alameda, CA, 2,566 miles away.
  • 👥 52 other ZIP codes are made of exactly the same digits (01945, 04915, 04951, 05149, 05491, 09154, …). The farthest-flung twin is 09154 in APO AE, a military post office, 3,881 miles away.
  • 🧭 Farther north than 68% of all ZIP codes, and farther east than 92%.
  • 🎯1,305 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 10549 and you would come out at 41.20°S, 106.28°E — 830 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 09m of daylight. Shortest: 9h 12m.
  • 📏 At 19.1 square miles of land, 10549 is bigger than 37% of ZIP codes — room for about 14 Central Parks.
🌙 The sky over 10549 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population16,135This ZIP16,135
Households6,158This ZIP6,158
Housing units6,752This ZIP6,752
Median age41.6This ZIP41.6New York39.8US 38.9
Median household income$133,988This ZIP$133,988New York$85,974US $80,734
Median home value$668,000This ZIP$668,000New York$423,800US $332,700
Median gross rent$1,571This ZIP$1,571New York$1,621US $1,413
Bachelor's degree or higher65.2%This ZIP65.2%
Mean commute35.6 minThis ZIP35.6 min
Population density845.1 / sq miThis ZIP845.1 / sq mi

Business and tax activity

Business establishments877This ZIP877
Employees14,985This ZIP14,985
Annual payroll$903,873,000This ZIP$903,873,000
Tax returns filed8,320This ZIP8,320
Total adjusted gross income$1,908,267,000This ZIP$1,908,267,000

Land area

Land area19.09 sq miThis ZIP19.09 sq mi
Water area0.63 sq miThis ZIP0.63 sq mi

Other place names in 10549

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

ZIP codes near 10549

ZIPCityDistance
10507 Bedford Hills, NY 2.7 mi
10514 Chappaqua, NY 3.1 mi
10546 Millwood, NY 4.0 mi
10506 Bedford, NY 4.5 mi
10504 Armonk, NY 5.1 mi
10536 Katonah, NY 5.1 mi
10562 Ossining, NY 5.3 mi
10610 White Plains, NY 5.7 mi
10545 Maryknoll, NY 6.0 mi
10570 Pleasantville, NY 6.1 mi

Find every ZIP code within 10 miles of 10549 →

Questions about this ZIP code

Where is ZIP code 10549?

10549 is in Mount Kisco, New York, in Westchester County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.2006, -73.7235.

What county is 10549 in?

10549 lies in Westchester County.

What area code is 10549?

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

What time zone is 10549 in?

10549 uses America/New_York.

How many people live in 10549?

About 16,135 people live in ZIP code 10549, in 6,158 households, at 845.1 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 10549?

$133,988 a year, against $85,974 across New York.

What ZIP codes are near 10549?

The closest are 10507 (2.7 mi), 10514 (3.1 mi), 10546 (4 mi), 10506 (4.5 mi) and 10504 (5.1 mi).

Is 10549 a PO Box ZIP code?

10549 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “10549 ZIP Code — Mount Kisco, New York (Westchester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/10549

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/10549.json

Underlying data is public domain or openly licensed — sources, vintages and licences.