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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/06409

06409

ZIP 06409 is Centerbrook, Connecticut, in Middlesex County; area codes 860 and 959; Eastern time.

Type
Standard
Time zone
America/New_York
County
Middlesex
Metro area
none
Population
701
Coordinates
41.3481, -72.4294
☼ Live from 06409 — Centerbrook, CT

Weather right now

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Local time: —

Where 06409 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 06409
  • 🔢 Type 06409 into a pocket calculator and turn it upside down: GOhgO — not quite a word, sorry.
  • ➕ As a number, 6,409 = 13 × 17 × 29. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100001001
  • 🏠 Its numerical neighbours: 06408 (Cheshire, CT, 26 mi away) and 06410 (Cheshire, CT, 27 mi away).
  • 🔄 Backwards, 06409 becomes 90460, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (00694, 04069, 04096, 04609, 06094, 06904, …). The farthest-flung twin is 09604 in APO AE, a military post office, 6,494 miles away.
  • 🧭 Farther north than 70% 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 06409 and you would come out at 41.35°S, 107.57°E — 795 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
  • 📏 At 1.2 square miles of land, 06409 is bigger than 9% of ZIP codes — about 564 football fields.
🌙 The sky over 06409 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population701This ZIP701
Households321This ZIP321
Housing units321This ZIP321
Median age43.0This ZIP43.0Connecticut41.1US 38.9
Median household income$107,909This ZIP$107,909Connecticut$95,781US $80,734
Median home value$387,300This ZIP$387,300Connecticut$366,900US $332,700
Median gross rent$1,444This ZIP$1,444Connecticut$1,488US $1,413
Bachelor's degree or higher46.9%This ZIP46.9%
Mean commute20.0 minThis ZIP20.0 min
Population density601.2 / sq miThis ZIP601.2 / sq mi

Business and tax activity

Business establishments67This ZIP67
Employees749This ZIP749
Annual payroll$52,429,000This ZIP$52,429,000
Tax returns filed390This ZIP390
Total adjusted gross income$34,262,000This ZIP$34,262,000

Land area

Land area1.17 sq miThis ZIP1.17 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 06409

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

ZIP codes near 06409

ZIPCityDistance
06442 Ivoryton, CT 0.5 mi
06426 Essex, CT 1.7 mi
06417 Deep River, CT 2.8 mi
06498 Westbrook, CT 4.0 mi
06475 Old Saybrook, CT 4.1 mi
06439 Hadlyme, CT 4.9 mi
06412 Chester, CT 5.3 mi
06371 Old Lyme, CT 5.6 mi
06413 Clinton, CT 6.3 mi
06423 East Haddam, CT 7.7 mi

Find every ZIP code within 10 miles of 06409 →

Questions about this ZIP code

Where is ZIP code 06409?

06409 is in Centerbrook, Connecticut, in Middlesex County. Its published point location is 41.3481, -72.4294.

What county is 06409 in?

06409 lies in Middlesex County.

What area code is 06409?

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

What time zone is 06409 in?

06409 uses America/New_York.

How many people live in 06409?

About 701 people live in ZIP code 06409, in 321 households, at 601.2 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 06409?

$107,909 a year, against $95,781 across Connecticut.

What ZIP codes are near 06409?

The closest are 06442 (0.5 mi), 06426 (1.7 mi), 06417 (2.8 mi), 06498 (4 mi) and 06475 (4.1 mi).

Is 06409 a PO Box ZIP code?

06409 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “06409 ZIP Code — Centerbrook, Connecticut (Middlesex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/06409

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