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/11958

11958

ZIP 11958 is Peconic, New York, in Suffolk County; area codes 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
884
Coordinates
41.0391, -72.4644
☼ Live from 11958 — Peconic, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 11958 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 11958
  • 🔢 Type 11958 into a pocket calculator and turn it upside down: BSGII — not quite a word, sorry.
  • ➕ As a number, 11,958 = 2 × 3 × 1993. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111010110110
  • 🏠 Its numerical neighbours: 11957 (Orient, NY, 21 mi away) and 11959 (Quogue, NY, 16 mi away).
  • 🔄 Backwards, 11958 becomes 85911 — and that is a real ZIP code: Cibecue, AZ, 2,116 miles away.
  • 👥 18 other ZIP codes are made of exactly the same digits (11598, 18195, 18519, 18915, 18951, 19185, …). The farthest-flung twin is 95118 in San Jose, CA, 2,626 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther east than 94%.
  • 🎯1,371 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11958 and you would come out at 41.04°S, 107.54°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 2.9 square miles of land, 11958 is bigger than 14% of ZIP codes — room for about 2.2 Central Parks.
🌙 The sky over 11958 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population884This ZIP884
Households339This ZIP339
Housing units554This ZIP554
Median age47.0This ZIP47.0New York39.8US 38.9
Median home value$1,039,900This ZIP$1,039,900New York$423,800US $332,700
Bachelor's degree or higher46.5%This ZIP46.5%
Mean commute25.8 minThis ZIP25.8 min
Population density301.8 / sq miThis ZIP301.8 / sq mi

Business and tax activity

Business establishments51This ZIP51
Employees384This ZIP384
Annual payroll$19,490,000This ZIP$19,490,000
Tax returns filed490This ZIP490
Total adjusted gross income$73,095,000This ZIP$73,095,000

Land area

Land area2.93 sq miThis ZIP2.93 sq mi
Water area1.23 sq miThis ZIP1.23 sq mi

Other place names in 11958

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

ZIP codes near 11958

ZIPCityDistance
11935 Cutchogue, NY 1.7 mi
11971 Southold, NY 2.6 mi
11956 New Suffolk, NY 3.3 mi
11952 Mattituck, NY 5.0 mi
11944 Greenport, NY 6.5 mi
11948 Laurel, NY 7.0 mi
11963 Sag Harbor, NY 8.0 mi
11964 Shelter Island, NY 8.5 mi
11970 South Jamesport, NY 8.8 mi
11965 Shelter Island Heights, NY 8.9 mi

Find every ZIP code within 10 miles of 11958 →

Questions about this ZIP code

Where is ZIP code 11958?

11958 is in Peconic, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 41.0391, -72.4644.

What county is 11958 in?

11958 lies in Suffolk County.

What area code is 11958?

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

What time zone is 11958 in?

11958 uses America/New_York.

How many people live in 11958?

About 884 people live in ZIP code 11958, in 339 households, at 301.8 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 11958?

The closest are 11935 (1.7 mi), 11971 (2.6 mi), 11956 (3.3 mi), 11952 (5 mi) and 11944 (6.5 mi).

Is 11958 a PO Box ZIP code?

11958 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “11958 ZIP Code — Peconic, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11958

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/11958.json

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