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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/06811

06811

ZIP 06811 is in Danbury, Connecticut, in Fairfield County; area codes 203 and 475; Eastern time. Danbury has 6 ZIP codes; the others are 06810, 06813, 06814, 06816 and 06817.

Type
Standard
Time zone
America/New_York
County
Fairfield
Metro area
none
Population
31,228
Coordinates
41.4226, -73.4784
☼ Live from 06811 — Danbury, CT

Weather right now

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Local time: —

Where 06811 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 06811
  • 🔢 Type 06811 into a pocket calculator and turn it upside down: IIBgO — not quite a word, sorry.
  • ➕ As a number, 6,811 = 7 × 7 × 139. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101010011011
  • 🏠 Its numerical neighbours: 06810 (Danbury, CT, 3 mi away) and 06812 (New Fairfield, CT, 4 mi away).
  • 🔄 Backwards, 06811 becomes 11860, which is not a ZIP code at all.
  • 👥 25 other ZIP codes are made of exactly the same digits (06118, 08611, 10168, 16018, 16108, 16801, …). The farthest-flung twin is 86011 in Flagstaff, AZ, 2,097 miles away.
  • 🧭 Farther north than 70% of all ZIP codes, and farther east than 92%.
  • 🎯1,316 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 06811 and you would come out at 41.42°S, 106.52°E — 833 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
  • 📏 At 21.0 square miles of land, 06811 is bigger than 38% of ZIP codes — room for about 16 Central Parks.
🌙 The sky over 06811 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population31,228This ZIP31,228
Households11,802This ZIP11,802
Housing units12,481This ZIP12,481
Median age45.1This ZIP45.1Connecticut41.1US 38.9
Median household income$104,640This ZIP$104,640Connecticut$95,781US $80,734
Median home value$421,200This ZIP$421,200Connecticut$366,900US $332,700
Median gross rent$1,767This ZIP$1,767Connecticut$1,488US $1,413
Bachelor's degree or higher41.3%This ZIP41.3%
Mean commute29.5 minThis ZIP29.5 min
Population density1,487.0 / sq miThis ZIP1,487.0 / sq mi

Business and tax activity

Business establishments586This ZIP586
Employees6,224This ZIP6,224
Annual payroll$322,609,000This ZIP$322,609,000
Tax returns filed15,540This ZIP15,540
Total adjusted gross income$1,520,991,000This ZIP$1,520,991,000

Land area

Land area21.00 sq miThis ZIP21.00 sq mi
Water area1.98 sq miThis ZIP1.98 sq mi

Other place names in 06811

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

ZIP codes near 06811

ZIPCityDistance
06813 Danbury, CT 2.3 mi
06817 Danbury, CT 2.3 mi
06810 Danbury, CT 3.3 mi
06812 New Fairfield, CT 4.0 mi
06804 Brookfield, CT 5.2 mi
06801 Bethel, CT 5.9 mi
10509 Brewster, NY 6.1 mi
06440 Hawleyville, CT 6.4 mi
06877 Ridgefield, CT 7.3 mi
12563 Patterson, NY 7.7 mi

Find every ZIP code within 10 miles of 06811 →

Questions about this ZIP code

Where is ZIP code 06811?

06811 is in Danbury, Connecticut, in Fairfield County. Its published point location is 41.4226, -73.4784.

What county is 06811 in?

06811 lies in Fairfield County.

What area code is 06811?

Danbury uses area codes 203 and 475, from NANPA's telephone records.

What time zone is 06811 in?

06811 uses America/New_York.

How many people live in 06811?

About 31,228 people live in ZIP code 06811, in 11,802 households, at 1,487.0 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 06811?

$104,640 a year, against $95,781 across Connecticut.

What ZIP codes are near 06811?

The closest are 06813 (2.3 mi), 06817 (2.3 mi), 06810 (3.3 mi), 06812 (4 mi) and 06804 (5.2 mi).

Is 06811 a PO Box ZIP code?

06811 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “06811 ZIP Code — Danbury, Connecticut (Fairfield County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/06811

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