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/COBALT

Cobalt ZIP code, Connecticut

The ZIP code for Cobalt, CT is 06414, and its area codes are 860 and 959.

USPS city name
1 ZIP code
Population
302
Area codes
860, 959

NANPA lists no telephone rate centre for Cobalt itself, so these are the area codes of the nearest one, East Hampton (2.8 miles). A town on an area-code boundary can differ from its neighbour.

Cobalt in numbers

About 302 people live in Cobalt, in 86 households. The median household income is $131,090 a year, 37% above the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $356,000 (about the same as the Connecticut median).

Population302Cobalt302
Households86Cobalt86
Median household income$131,090Cobalt$131,090Connecticut$95,781US $80,734
Median home value$356,000Cobalt$356,000Connecticut$366,900US $332,700

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

ZIP codes addressed as Cobalt

ZIP codes with the USPS city name Cobalt
ZIP City Type Population Median income Median home
06414 Cobalt , CT Standard 302 $131,090 $356,000

Map of Cobalt ZIP codes

The ZIP codes of Cobalt, 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 Cobalt

The nearest larger towns are Lake Pocotopaug (4,875 people, 3.1 mi), Portland (5,944 people, 3.5 mi) and East Hampton (3,347 people, 3.5 mi).

Towns near Cobalt
TownPopulationDistance
Lake Pocotopaug 4,875 3.1 mi
Portland 5,944 3.5 mi
East Hampton 3,347 3.5 mi
Middletown 47,958 5.7 mi
Glastonbury Center 7,266 8.9 mi
Durham 3,347 10.1 mi
Wethersfield 27,250 10.6 mi
Colchester 4,692 11.3 mi
Kensington 9,962 11.7 mi
Newington 30,896 11.9 mi
Meriden 60,545 12.8 mi
East Hartford 50,918 13.0 mi
New Britain 74,223 13.9 mi
Manchester 36,759 14.1 mi

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

Cite this page

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

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