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/06255

06255

ZIP 06255 is North Grosvenordale, Connecticut, in Windham County; area codes 860 and 959; Eastern time.

Type
Standard
Time zone
America/New_York
County
Windham
Metro area
none
Population
4,494
Coordinates
41.9911, -71.9020
☼ Live from 06255 — North Grosvenordale, CT

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 06255 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 06255
  • 🔢 Type 06255 into a pocket calculator and turn it upside down: SSZgO — not quite a word, sorry.
  • ➕ As a number, 6,255 = 3 × 3 × 5 × 139. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100001101111
  • 🏠 Its numerical neighbours: 06254 (North Franklin, CT, 28 mi away) and 06256 (North Windham, CT, 22 mi away).
  • 🔄 Backwards, 06255 becomes 55260, which is not a ZIP code at all.
  • 👥 33 other ZIP codes are made of exactly the same digits (02556, 02655, 05652, 06525, 20565, 25506, …). The farthest-flung twin is 56520 in Breckenridge, MN, 1,250 miles away.
  • 🧭 Farther north than 75% of all ZIP codes, and farther east than 95%.
  • 🎯1,395 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 06255 and you would come out at 41.99°S, 108.10°E — 814 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 14m of daylight. Shortest: 9h 07m.
  • 📏 At 23.1 square miles of land, 06255 is bigger than 40% of ZIP codes — room for about 18 Central Parks.
🌙 The sky over 06255 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,494This ZIP4,494
Households2,042This ZIP2,042
Housing units2,089This ZIP2,089
Median age55.0This ZIP55.0Connecticut41.1US 38.9
Median household income$88,750This ZIP$88,750Connecticut$95,781US $80,734
Median home value$312,200This ZIP$312,200Connecticut$366,900US $332,700
Median gross rent$926This ZIP$926Connecticut$1,488US $1,413
Bachelor's degree or higher25.8%This ZIP25.8%
Mean commute26.9 minThis ZIP26.9 min
Population density194.8 / sq miThis ZIP194.8 / sq mi

Business and tax activity

Business establishments58This ZIP58
Employees295This ZIP295
Annual payroll$10,562,000This ZIP$10,562,000
Tax returns filed2,190This ZIP2,190
Total adjusted gross income$155,994,000This ZIP$155,994,000

Land area

Land area23.07 sq miThis ZIP23.07 sq mi
Water area0.72 sq miThis ZIP0.72 sq mi

Other place names in 06255

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

ZIP codes near 06255

ZIPCityDistance
06246 Grosvenor Dale, CT 1.5 mi
06245 Fabyan, CT 2.8 mi
06262 Quinebaug, CT 3.1 mi
06277 Thompson, CT 3.7 mi
06267 South Woodstock, CT 3.9 mi
06244 East Woodstock, CT 4.1 mi
01571 Dudley, MA 4.7 mi
01570 Webster, MA 4.9 mi
06281 Woodstock, CT 5.9 mi
06260 Putnam, CT 6.0 mi

Find every ZIP code within 10 miles of 06255 →

Questions about this ZIP code

Where is ZIP code 06255?

06255 is in North Grosvenordale, Connecticut, in Windham County. Its published point location is 41.9911, -71.9020.

What county is 06255 in?

06255 lies in Windham County.

What area code is 06255?

North Grosvenordale uses area codes 860 and 959, from NANPA's telephone records.

What time zone is 06255 in?

06255 uses America/New_York.

How many people live in 06255?

About 4,494 people live in ZIP code 06255, in 2,042 households, at 194.8 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 06255?

$88,750 a year, against $95,781 across Connecticut.

What ZIP codes are near 06255?

The closest are 06246 (1.5 mi), 06245 (2.8 mi), 06262 (3.1 mi), 06277 (3.7 mi) and 06267 (3.9 mi).

Is 06255 a PO Box ZIP code?

06255 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “06255 ZIP Code — North Grosvenordale, Connecticut (Windham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/06255

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/06255.json

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