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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/06243

06243

ZIP 06243 is East Killingly, Connecticut, in Windham County; area codes 860 and 959; Eastern time.

Type
Standard
Time zone
America/New_York
County
Windham
Metro area
none
Population
83
Coordinates
41.8449, -71.8050
☼ Live from 06243 — East Killingly, CT

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Local time: —

Where 06243 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 06243
  • 🔢 Type 06243 into a pocket calculator and turn it upside down: EhZgO — not quite a word, sorry.
  • ➕ As a number, 6,243 = 3 × 2081. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100001100011
  • 🏠 Its numerical neighbours: 06242 (Eastford, CT, 15 mi away) and 06244 (East Woodstock, CT, 13 mi away).
  • 🔄 Backwards, 06243 becomes 34260 — and that is a real ZIP code: Manasota, FL, 1,163 miles away.
  • 👥 63 other ZIP codes are made of exactly the same digits (02346, 02364, 02634, 02643, 03246, 03264, …). The farthest-flung twin is 34260 in Manasota, FL, 1,163 miles away.
  • 🧭 Farther north than 74% of all ZIP codes, and farther east than 95%.
  • 🎯1,401 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 06243 and you would come out at 41.84°S, 108.19°E — 803 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
  • 📏 At 0.726 square miles of land, 06243 is bigger than 7% of ZIP codes — about 351 football fields.
🌙 The sky over 06243 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population83This ZIP83
Households20This ZIP20
Housing units53This ZIP53
Median age36.8This ZIP36.8Connecticut41.1US 38.9
Median household income$122,083This ZIP$122,083Connecticut$95,781US $80,734
Bachelor's degree or higher11.5%This ZIP11.5%
Population density114.3 / sq miThis ZIP114.3 / sq mi

Business and tax activity

Business establishments7This ZIP7
Employees37This ZIP37
Annual payroll$2,047,000This ZIP$2,047,000
Tax returns filed130This ZIP130
Total adjusted gross income$8,547,000This ZIP$8,547,000

Land area

Land area0.73 sq miThis ZIP0.73 sq mi
Water area0.10 sq miThis ZIP0.10 sq mi

ZIP codes near 06243

ZIPCityDistance
06241 Dayville, CT 2.3 mi
06233 Ballouville, CT 3.6 mi
06239 Danielson, CT 4.3 mi
06263 Rogers, CT 5.1 mi
06260 Putnam, CT 5.5 mi
02825 Foster, RI 5.9 mi
02814 Chepachet, RI 6.2 mi
06377 Sterling, CT 7.9 mi
06277 Thompson, CT 8.1 mi
02859 Pascoag, RI 8.3 mi

Find every ZIP code within 10 miles of 06243 →

Questions about this ZIP code

Where is ZIP code 06243?

06243 is in East Killingly, Connecticut, in Windham County. Its published point location is 41.8449, -71.8050.

What county is 06243 in?

06243 lies in Windham County.

What area code is 06243?

East Killingly uses area codes 860 and 959, from NANPA's telephone records.

What time zone is 06243 in?

06243 uses America/New_York.

How many people live in 06243?

About 83 people live in ZIP code 06243, in 20 households, at 114.3 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 06243?

$122,083 a year, against $95,781 across Connecticut.

What ZIP codes are near 06243?

The closest are 06241 (2.3 mi), 06233 (3.6 mi), 06239 (4.3 mi), 06263 (5.1 mi) and 06260 (5.5 mi).

Is 06243 a PO Box ZIP code?

06243 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “06243 ZIP Code — East Killingly, Connecticut (Windham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/06243

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