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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/11773

11773

ZIP 11773 is in Syosset, New York, in Nassau County; area codes 516 and 363; Eastern time. Syosset has 2 ZIP codes; the other is 11791.

Type
No street area
Time zone
America/New_York
County
Nassau
Coordinates
40.8262, -73.5021

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 11791, whose figures describe that area — not this ZIP code.

☼ Live from 11773 — Syosset, NY

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Where 11773 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 11773
  • 🔢 Type 11773 into a pocket calculator and turn it upside down: ELLII — not quite a word, sorry.
  • ➕ As a number, 11,773 = 61 × 193. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111111101
  • 🏠 Its numerical neighbours: 11772 (Patchogue, NY, 27 mi away) and 11775 (Melville, NY, 5 mi away).
  • 🔄 Backwards, 11773 becomes 37711 — and that is a real ZIP code: Bulls Gap, TN, 603 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (11377, 11737, 17317, 17371, 17731, 31771, …). The farthest-flung twin is 73117 in Oklahoma City, OK, 1,349 miles away.
  • 🧭 Farther north than 65% of all ZIP codes, and farther east than 92%.
  • 🎯1,318 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11773 and you would come out at 40.83°S, 106.50°E — 803 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 14m.
🌙 The sky over 11773 today
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Source: USGS.

Land area

ZIP codes near 11773

ZIPCityDistance
11791 Syosset, NY 0.1 mi
11797 Woodbury, NY 1.6 mi
11732 East Norwich, NY 2.2 mi
11853 Jericho, NY 3.1 mi
11753 Jericho, NY 3.2 mi
11803 Plainview, NY 3.4 mi
11771 Oyster Bay, NY 3.5 mi
11724 Cold Spring Harbor, NY 3.6 mi
11802 Hicksville, NY 4.2 mi
11819 Hicksville, NY 4.2 mi

Find every ZIP code within 10 miles of 11773 →

Questions about this ZIP code

Where is ZIP code 11773?

11773 is in Syosset, New York, in Nassau County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.8262, -73.5021.

What county is 11773 in?

11773 lies in Nassau County.

What area code is 11773?

Syosset uses area codes 516 and 363, from NANPA's telephone records.

What time zone is 11773 in?

11773 uses America/New_York.

What ZIP codes are near 11773?

The closest are 11791 (0.1 mi), 11797 (1.6 mi), 11732 (2.2 mi), 11853 (3.1 mi) and 11753 (3.2 mi).

Is 11773 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “11773 ZIP Code — Syosset, New York (Nassau County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11773

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