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/HADDAM

Haddam ZIP code, Connecticut

The ZIP code for Haddam, CT is 06438, and its area codes are 860 and 959.

USPS city name
1 ZIP code
Population
2,887
Area codes
860, 959

Haddam in numbers

About 2,887 people live in Haddam, in 1,036 households. The median household income is $121,429 a year, 27% above the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $362,500 (about the same as the Connecticut median).

Population2,887Haddam2,887
Households1,036Haddam1,036
Median household income$121,429Haddam$121,429Connecticut$95,781US $80,734
Median home value$362,500Haddam$362,500Connecticut$366,900US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Haddam. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Haddam

ZIP codes with the USPS city name Haddam
ZIP City Type Population Median income Median home
06438 Haddam , CT Standard 2,887 $121,429 $362,500

Map of Haddam ZIP codes

06438

The ZIP codes of Haddam, 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 Haddam

The nearest larger towns are East Hampton (3,347 people, 8.6 mi), Durham (3,347 people, 9.1 mi) and Middletown (47,958 people, 10 mi).

Towns near Haddam
TownPopulationDistance
East Hampton 3,347 8.6 mi
Essex Village 2,705 8.9 mi
Durham 3,347 9.1 mi
Middletown 47,958 10.2 mi
Portland 5,944 10.4 mi
Lake Pocotopaug 4,875 10.5 mi
Clinton 3,465 12.1 mi
Westbrook Center 2,501 12.2 mi
Colchester 4,692 12.7 mi
Northford 6,186 14.7 mi
Meriden 60,545 15.9 mi
Wallingford Center 18,208 16.0 mi
Glastonbury Center 7,266 17.9 mi
Kensington 9,962 18.0 mi

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

Cite this page

zipcodes.pro. “Haddam, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/haddam

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