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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/11520

11520

ZIP 11520 is Freeport, New York, in Nassau County; area codes 516 and 363; Eastern time.

Type
Standard
Time zone
America/New_York
County
Nassau
Population
44,910
Coordinates
40.6494, -73.5830
☼ Live from 11520 — Freeport, NY

Weather right now

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Local time: —

Where 11520 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 11520
  • 🔢 Type 11520 into a pocket calculator and turn it upside down: OZSII — not quite a word, sorry.
  • ➕ As a number, 11,520 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110100000000
  • 🏠 Its numerical neighbours: 11518 (East Rockaway, NY, 4 mi away) and 11530 (Garden City, NY, 6 mi away).
  • 🔄 Backwards, 11520 becomes 02511, which is not a ZIP code at all.
  • 👥 37 other ZIP codes are made of exactly the same digits (01152, 01521, 02115, 02151, 10125, 10152, …). The farthest-flung twin is 51102 in Sioux City, IA, 1,179 miles away.
  • 🧭 Farther north than 62% of all ZIP codes, and farther east than 92%.
  • 🎯1,315 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11520 and you would come out at 40.65°S, 106.42°E — 798 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 15m.
  • 📏 At 5.1 square miles of land, 11520 is bigger than 19% of ZIP codes — room for about 3.8 Central Parks.
🌙 The sky over 11520 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population44,910This ZIP44,910
Households14,117This ZIP14,117
Housing units14,969This ZIP14,969
Median age39.8This ZIP39.8New York39.8US 38.9
Median household income$121,748This ZIP$121,748New York$85,974US $80,734
Median home value$506,100This ZIP$506,100New York$423,800US $332,700
Median gross rent$2,077This ZIP$2,077New York$1,621US $1,413
Bachelor's degree or higher27.5%This ZIP27.5%
Mean commute35.6 minThis ZIP35.6 min
Population density8,875.5 / sq miThis ZIP8,875.5 / sq mi

Business and tax activity

Business establishments1,338This ZIP1,338
Employees13,634This ZIP13,634
Annual payroll$691,759,000This ZIP$691,759,000
Tax returns filed25,070This ZIP25,070
Total adjusted gross income$1,592,474,000This ZIP$1,592,474,000

Land area

Land area5.06 sq miThis ZIP5.06 sq mi
Water area0.50 sq miThis ZIP0.50 sq mi

Other place names in 11520

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

ZIP codes near 11520

ZIPCityDistance
11510 Baldwin, NY 1.3 mi
11566 Merrick, NY 1.7 mi
11575 Roosevelt, NY 2.1 mi
11710 Bellmore, NY 3.0 mi
11572 Oceanside, NY 3.1 mi
11571 Rockville Centre, NY 3.1 mi
11570 Rockville Centre, NY 3.1 mi
11555 Uniondale, NY 3.6 mi
11793 Wantagh, NY 3.8 mi
11553 Uniondale, NY 3.9 mi

Find every ZIP code within 10 miles of 11520 →

Questions about this ZIP code

Where is ZIP code 11520?

11520 is in Freeport, New York, in Nassau County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.6494, -73.5830.

What county is 11520 in?

11520 lies in Nassau County.

What area code is 11520?

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

What time zone is 11520 in?

11520 uses America/New_York.

How many people live in 11520?

About 44,910 people live in ZIP code 11520, in 14,117 households, at 8,875.5 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 11520?

$121,748 a year, against $85,974 across New York.

What ZIP codes are near 11520?

The closest are 11510 (1.3 mi), 11566 (1.7 mi), 11575 (2.1 mi), 11710 (3 mi) and 11572 (3.1 mi).

Is 11520 a PO Box ZIP code?

11520 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “11520 ZIP Code — Freeport, New York (Nassau County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11520

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