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zipcodes.pro — ZIP/11720

11720

ZIP 11720 is Centereach, New York, in Suffolk County; area codes 516, 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
29,292
Coordinates
40.8702, -73.0820
☼ Live from 11720 — Centereach, NY

Weather right now

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NEXRAD radar
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Local time: —

Where 11720 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 11720
  • 🔢 Type 11720 into a pocket calculator and turn it upside down: OZLII — not quite a word, sorry.
  • ➕ As a number, 11,720 = 2 × 2 × 2 × 5 × 293. Its digits add up to 11, a total 714 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111001000
  • 🏠 Its numerical neighbours: 11719 (Brookhaven, NY, 11 mi away) and 11721 (Centerport, NY, 15 mi away).
  • 🔄 Backwards, 11720 becomes 02711, which is not a ZIP code at all.
  • 👥 40 other ZIP codes are made of exactly the same digits (01721, 02117, 02171, 07112, 10172, 10271, …). The farthest-flung twin is 71102 in Shreveport, LA, 1,275 miles away.
  • 🧭 Farther north than 65% of all ZIP codes, and farther east than 93%.
  • 🎯1,340 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11720 and you would come out at 40.87°S, 106.92°E — 791 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
  • 📏 At 8.2 square miles of land, 11720 is bigger than 25% of ZIP codes — room for about 6.3 Central Parks.
🌙 The sky over 11720 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population29,292This ZIP29,292
Households8,860This ZIP8,860
Housing units9,529This ZIP9,529
Median age38.8This ZIP38.8New York39.8US 38.9
Median household income$134,898This ZIP$134,898New York$85,974US $80,734
Median home value$518,600This ZIP$518,600New York$423,800US $332,700
Median gross rent$2,374This ZIP$2,374New York$1,621US $1,413
Bachelor's degree or higher36.7%This ZIP36.7%
Mean commute31.6 minThis ZIP31.6 min
Population density3,555.7 / sq miThis ZIP3,555.7 / sq mi

Business and tax activity

Business establishments598This ZIP598
Employees5,738This ZIP5,738
Annual payroll$229,207,000This ZIP$229,207,000
Tax returns filed15,240This ZIP15,240
Total adjusted gross income$1,334,199,000This ZIP$1,334,199,000

Land area

Land area8.24 sq miThis ZIP8.24 sq mi
Water area0.00 sq mi

Other place names in 11720

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

ZIP codes near 11720

ZIPCityDistance
11755 Lake Grove, NY 2.0 mi
11784 Selden, NY 2.1 mi
11738 Farmingville, NY 3.2 mi
11790 Stony Brook, NY 3.5 mi
11776 Port Jefferson Station, NY 3.5 mi
11767 Nesconset, NY 3.7 mi
11794 Stony Brook, NY 4.1 mi
11727 Coram, NY 4.2 mi
00501 Holtsville, NY 4.3 mi
00544 Holtsville, NY 4.3 mi

Find every ZIP code within 10 miles of 11720 →

Questions about this ZIP code

Where is ZIP code 11720?

11720 is in Centereach, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.8702, -73.0820.

What county is 11720 in?

11720 lies in Suffolk County.

What area code is 11720?

Centereach uses area codes 516, 631 and 934, from NANPA's telephone records.

What time zone is 11720 in?

11720 uses America/New_York.

How many people live in 11720?

About 29,292 people live in ZIP code 11720, in 8,860 households, at 3,555.7 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 11720?

$134,898 a year, against $85,974 across New York.

What ZIP codes are near 11720?

The closest are 11755 (2 mi), 11784 (2.1 mi), 11738 (3.2 mi), 11790 (3.5 mi) and 11776 (3.5 mi).

Is 11720 a PO Box ZIP code?

11720 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “11720 ZIP Code — Centereach, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11720

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