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 — CITY/NY/NORTH-SEA

North Sea ZIP codes, New York

No ZIP code is named for North Sea, NY; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 11968 and 11976. Its area codes are 631 and 934.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
6,458
Area codes
631, 934

NANPA lists no telephone rate centre for North Sea itself, so these are the area codes of the nearest one, Southampton (0.0 miles). A town on an area-code boundary can differ from its neighbour.

North Sea in numbers

About 6,458 people live in North Sea, in 2,358 households. The median household income is $161,587 a year, 88% above the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $1,128,000 (2.7 times the New York median), and median gross rent is $3,063 a month. The median age is 44.8; 57.6% of adults 25 and over hold a bachelor's degree or higher (40.2% across New York); the average commute takes 27 minutes.

Population6,458North Sea6,458
Households2,358North Sea2,358
Median age44.8North Sea44.8New York39.8US 38.9
Median household income$161,587North Sea$161,587New York$85,974US $80,734
Median home value$1,128,000North Sea$1,128,000New York$423,800US $332,700
Median gross rent$3,063North Sea$3,063New York$1,621US $1,413
Bachelor's degree or higher57.6%North Sea57.6%New York40.2%US 35.7%
Mean commute26.9 minNorth Sea26.9 minNew York32.6 minUS 26.4 min
Population density584 / sq miNorth Sea584 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place North Sea CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering North Sea

These ZIP codes cover part of North Sea but are addressed as somewhere else.

ZIP codes overlapping North Sea
ZIP City Type Population Median income Median home
11968 Southampton , NY Standard 15,312 $156,219 $1,326,600
11976 Water Mill , NY Standard 2,952 $180,250 $2,000,000+

Map of North Sea ZIP codes

The ZIP codes of North Sea, NY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near North Sea

The nearest larger towns are Hampton Bays (15,706 people, 7.5 mi), Flanders (6,609 people, 11 mi) and Riverhead (14,936 people, 14 mi).

Towns near North Sea
TownPopulationDistance
Water Mill 2,764 3.0 mi
Southampton 4,621 3.8 mi
Shinnecock Hills 2,545 3.8 mi
Noyack 4,782 4.5 mi
Hampton Bays 15,706 7.5 mi
Cutchogue 2,835 7.5 mi
Mattituck 4,606 8.9 mi
Southold 6,397 9.3 mi
East Quogue 5,406 10.6 mi
Flanders 6,609 10.8 mi
Northwest Harbor 5,205 11.2 mi
East Hampton North 6,006 11.7 mi
Greenport 2,574 12.0 mi
Riverside 4,038 14.0 mi

More nearby: every ZIP code in Suffolk County · New York ZIP codes

Cite this page

zipcodes.pro. “North Sea, NY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ny/north-sea

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