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 — CITY/CT/MILL-PLAIN

Mill Plain ZIP codes, Connecticut

No ZIP code is named for Mill Plain, CT; addresses there use a neighbouring town's name. The ZIP code covering it is 06824. Its area codes are 203 and 475.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
2,033
Area codes
203, 475

NANPA lists no telephone rate centre for Mill Plain itself, so these are the area codes of the nearest one, Fairfield (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Mill Plain in numbers

About 2,033 people live in Mill Plain, in 685 households. The median household income is $200,380 a year, 2.1 times the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $818,900 (2.2 times the Connecticut median). The median age is 43.8; 71.8% of adults 25 and over hold a bachelor's degree or higher (42.5% across Connecticut); the average commute takes 29 minutes.

Population2,033Mill Plain2,033
Households685Mill Plain685
Median age43.8Mill Plain43.8Connecticut41.1US 38.9
Median household income$200,380Mill Plain$200,380Connecticut$95,781US $80,734
Median home value$818,900Mill Plain$818,900Connecticut$366,900US $332,700
Bachelor's degree or higher71.8%Mill Plain71.8%Connecticut42.5%US 35.7%
Mean commute29.0 minMill Plain29.0 minConnecticut26.5 minUS 26.4 min
Population density4,175 / sq miMill Plain4,175 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Mill Plain CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Mill Plain

These ZIP codes cover part of Mill Plain but are addressed as somewhere else.

ZIP codes overlapping Mill Plain
ZIP City Type Population Median income Median home
06824 Fairfield , CT Standard 36,716 $193,300 $869,100

Map of Mill Plain ZIP codes

06824

The ZIP codes of Mill Plain, CT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Mill Plain

The nearest larger towns are Fairfield University (2,939 people, 0.7 mi), Staples (7,340 people, 3.0 mi) and Greens Farms (3,229 people, 3.5 mi).

Towns near Mill Plain
TownPopulationDistance
Fairfield University 2,939 0.7 mi
Staples 7,340 3.0 mi
Greens Farms 3,229 3.5 mi
Coleytown 3,472 4.2 mi
Bridgeport 149,153 4.4 mi
Westport Village 3,021 4.8 mi
Compo 3,410 4.9 mi
Old Hill 2,990 5.8 mi
Saugatuck 2,925 6.0 mi
Trumbull Center 10,264 7.5 mi
Long Hill 8,681 8.0 mi
Lordship 3,669 8.0 mi
Tashua 3,771 8.3 mi
Daniels Farm 5,976 8.9 mi

More nearby: every ZIP code in Fairfield County · Connecticut ZIP codes

Cite this page

zipcodes.pro. “Mill Plain, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/mill-plain

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