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/11730

11730

ZIP 11730 is East Islip, New York, in Suffolk County; area codes 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
14,247
Coordinates
40.7276, -73.1850
☼ Live from 11730 — East Islip, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 11730 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 11730
  • 🔢 Type 11730 into a pocket calculator and turn it upside down: OELII — not quite a word, sorry.
  • ➕ As a number, 11,730 = 2 × 3 × 5 × 17 × 23. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111010010
  • 🏠 Its numerical neighbours: 11729 (Deer Park, NY, 8 mi away) and 11731 (East Northport, NY, 12 mi away).
  • 🔄 Backwards, 11730 becomes 03711, which is not a ZIP code at all.
  • 👥 31 other ZIP codes are made of exactly the same digits (01731, 07311, 10173, 11370, 11703, 13071, …). The farthest-flung twin is 73011 in Bradley, OK, 1,396 miles away.
  • 🧭 Farther north than 63% of all ZIP codes, and farther east than 93%.
  • 🎯1,335 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11730 and you would come out at 40.73°S, 106.82°E — 787 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
  • 📏 At 4.5 square miles of land, 11730 is bigger than 18% of ZIP codes — room for about 3.4 Central Parks.
🌙 The sky over 11730 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population14,247This ZIP14,247
Households4,994This ZIP4,994
Housing units5,169This ZIP5,169
Median age43.4This ZIP43.4New York39.8US 38.9
Median household income$145,652This ZIP$145,652New York$85,974US $80,734
Median home value$594,200This ZIP$594,200New York$423,800US $332,700
Median gross rent$2,732This ZIP$2,732New York$1,621US $1,413
Bachelor's degree or higher43.0%This ZIP43.0%
Mean commute29.7 minThis ZIP29.7 min
Population density3,168.8 / sq miThis ZIP3,168.8 / sq mi

Business and tax activity

Business establishments418This ZIP418
Employees3,261This ZIP3,261
Annual payroll$131,884,000This ZIP$131,884,000
Tax returns filed7,820This ZIP7,820
Total adjusted gross income$957,306,000This ZIP$957,306,000

Land area

Land area4.50 sq miThis ZIP4.50 sq mi
Water area0.49 sq miThis ZIP0.49 sq mi

Other place names in 11730

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

ZIP codes near 11730

ZIPCityDistance
11751 Islip, NY 1.5 mi
11739 Great River, NY 1.5 mi
11752 Islip Terrace, NY 2.2 mi
11769 Oakdale, NY 3.2 mi
11706 Bay Shore, NY 3.3 mi
11722 Central Islip, NY 3.9 mi
11718 Brightwaters, NY 4.1 mi
11716 Bohemia, NY 4.3 mi
11796 West Sayville, NY 4.5 mi
11717 Brentwood, NY 5.3 mi

Find every ZIP code within 10 miles of 11730 →

Questions about this ZIP code

Where is ZIP code 11730?

11730 is in East Islip, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.7276, -73.1850.

What county is 11730 in?

11730 lies in Suffolk County.

What area code is 11730?

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

What time zone is 11730 in?

11730 uses America/New_York.

How many people live in 11730?

About 14,247 people live in ZIP code 11730, in 4,994 households, at 3,168.8 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 11730?

$145,652 a year, against $85,974 across New York.

What ZIP codes are near 11730?

The closest are 11751 (1.5 mi), 11739 (1.5 mi), 11752 (2.2 mi), 11769 (3.2 mi) and 11706 (3.3 mi).

Is 11730 a PO Box ZIP code?

11730 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “11730 ZIP Code — East Islip, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11730

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/11730.json

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