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zipcodes.pro — ZIP/11971

11971

ZIP 11971 is Southold, New York, in Suffolk County; area codes 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
6,361
Coordinates
41.0647, -72.4291
☼ Live from 11971 — Southold, NY

Weather right now

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Local time: —

Where 11971 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 11971
  • 🔢 Type 11971 into a pocket calculator and turn it upside down: ILGII — not quite a word, sorry.
  • ➕ 11971 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111011000011
  • 🏠 Its numerical neighbours: 11970 (South Jamesport, NY, 11 mi away) and 11972 (Speonk, NY, 22 mi away).
  • 🔄 Backwards, 11971 becomes 17911, which is not a ZIP code at all.
  • 👥 9 other ZIP codes are made of exactly the same digits (11719, 11791, 19171, 19711, 71119, 79111, …). The farthest-flung twin is 97111 in Carlton, OR, 2,532 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther east than 94%.
  • 🎯1,373 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11971 and you would come out at 41.06°S, 107.57°E — 779 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
  • 📏 At 11.0 square miles of land, 11971 is bigger than 28% of ZIP codes — room for about 8.3 Central Parks.
🌙 The sky over 11971 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,361This ZIP6,361
Households2,437This ZIP2,437
Housing units3,946This ZIP3,946
Median age48.7This ZIP48.7New York39.8US 38.9
Median household income$129,507This ZIP$129,507New York$85,974US $80,734
Median home value$843,300This ZIP$843,300New York$423,800US $332,700
Median gross rent$2,335This ZIP$2,335New York$1,621US $1,413
Bachelor's degree or higher55.2%This ZIP55.2%
Mean commute27.4 minThis ZIP27.4 min
Population density580.3 / sq miThis ZIP580.3 / sq mi

Business and tax activity

Business establishments233This ZIP233
Employees1,306This ZIP1,306
Annual payroll$68,857,000This ZIP$68,857,000
Tax returns filed3,210This ZIP3,210
Total adjusted gross income$518,739,000This ZIP$518,739,000

Land area

Land area10.96 sq miThis ZIP10.96 sq mi
Water area4.12 sq miThis ZIP4.12 sq mi

Other place names in 11971

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

ZIP codes near 11971

ZIPCityDistance
11958 Peconic, NY 2.6 mi
11944 Greenport, NY 3.9 mi
11935 Cutchogue, NY 4.3 mi
11956 New Suffolk, NY 5.6 mi
11965 Shelter Island Heights, NY 6.7 mi
11964 Shelter Island, NY 6.7 mi
11963 Sag Harbor, NY 7.2 mi
11952 Mattituck, NY 7.6 mi
11939 East Marion, NY 7.7 mi
11948 Laurel, NY 9.6 mi

Find every ZIP code within 10 miles of 11971 →

Questions about this ZIP code

Where is ZIP code 11971?

11971 is in Southold, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.0647, -72.4291.

What county is 11971 in?

11971 lies in Suffolk County.

What area code is 11971?

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

What time zone is 11971 in?

11971 uses America/New_York.

How many people live in 11971?

About 6,361 people live in ZIP code 11971, in 2,437 households, at 580.3 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 11971?

$129,507 a year, against $85,974 across New York.

What ZIP codes are near 11971?

The closest are 11958 (2.6 mi), 11944 (3.9 mi), 11935 (4.3 mi), 11956 (5.6 mi) and 11965 (6.7 mi).

Is 11971 a PO Box ZIP code?

11971 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “11971 ZIP Code — Southold, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11971

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