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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/11740

11740

ZIP 11740 is Greenlawn, New York, in Suffolk County; area codes 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
10,127
Coordinates
40.8653, -73.3612
☼ Live from 11740 — Greenlawn, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
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Local time: —

Where 11740 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 11740
  • 🔢 Type 11740 into a pocket calculator and turn it upside down: OhLII — not quite a word, sorry.
  • ➕ As a number, 11,740 = 2 × 2 × 5 × 587. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111011100
  • 🏠 Its numerical neighbours: 11739 (Great River, NY, 15 mi away) and 11741 (Holbrook, NY, 16 mi away).
  • 🔄 Backwards, 11740 becomes 04711, which is not a ZIP code at all.
  • 👥 30 other ZIP codes are made of exactly the same digits (01471, 01741, 07114, 10174, 10471, 11704, …). The farthest-flung twin is 71104 in Shreveport, LA, 1,264 miles away.
  • 🧭 Farther north than 65% of all ZIP codes, and farther east than 92%.
  • 🎯1,325 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11740 and you would come out at 40.87°S, 106.64°E — 800 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
  • 📏 At 3.7 square miles of land, 11740 is bigger than 16% of ZIP codes — room for about 2.8 Central Parks.
🌙 The sky over 11740 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population10,127This ZIP10,127
Households3,572This ZIP3,572
Housing units3,586This ZIP3,586
Median age44.5This ZIP44.5New York39.8US 38.9
Median household income$152,386This ZIP$152,386New York$85,974US $80,734
Median home value$693,700This ZIP$693,700New York$423,800US $332,700
Median gross rent$684This ZIP$684New York$1,621US $1,413
Bachelor's degree or higher54.2%This ZIP54.2%
Mean commute34.8 minThis ZIP34.8 min
Population density2,764.7 / sq miThis ZIP2,764.7 / sq mi

Business and tax activity

Business establishments263This ZIP263
Employees2,406This ZIP2,406
Annual payroll$168,403,000This ZIP$168,403,000
Tax returns filed4,840This ZIP4,840
Total adjusted gross income$728,855,000This ZIP$728,855,000

Land area

Land area3.66 sq miThis ZIP3.66 sq mi
Water area0.00 sq mi

Other place names in 11740

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

ZIP codes near 11740

ZIPCityDistance
11731 East Northport, NY 2.3 mi
11721 Centerport, NY 2.6 mi
11743 Huntington, NY 3.5 mi
11746 Huntington Station, NY 3.5 mi
11768 Northport, NY 4.2 mi
11725 Commack, NY 4.5 mi
11724 Cold Spring Harbor, NY 5.0 mi
11760 Melville, NY 5.7 mi
11775 Melville, NY 5.7 mi
11754 Kings Park, NY 6.0 mi

Find every ZIP code within 10 miles of 11740 →

Questions about this ZIP code

Where is ZIP code 11740?

11740 is in Greenlawn, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.8653, -73.3612.

What county is 11740 in?

11740 lies in Suffolk County.

What area code is 11740?

Greenlawn uses area codes 631 and 934, from NANPA's telephone records.

What time zone is 11740 in?

11740 uses America/New_York.

How many people live in 11740?

About 10,127 people live in ZIP code 11740, in 3,572 households, at 2,764.7 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 11740?

$152,386 a year, against $85,974 across New York.

What ZIP codes are near 11740?

The closest are 11731 (2.3 mi), 11721 (2.6 mi), 11743 (3.5 mi), 11746 (3.5 mi) and 11768 (4.2 mi).

Is 11740 a PO Box ZIP code?

11740 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “11740 ZIP Code — Greenlawn, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11740

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