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/PLAINFIELD

Plainfield ZIP code, Connecticut

The ZIP code for Plainfield, CT is 06374, and its area codes are 860 and 959.

USPS city name
1 ZIP code
Population
7,838
Area codes
860, 959

Plainfield in numbers

About 7,838 people live in Plainfield, in 3,185 households. The median household income is $71,882 a year, 25% below the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $248,700 (32% below the Connecticut median).

Population7,838Plainfield7,838
Households3,185Plainfield3,185
Median household income$71,882Plainfield$71,882Connecticut$95,781US $80,734
Median home value$248,700Plainfield$248,700Connecticut$366,900US $332,700

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

ZIP codes addressed as Plainfield

ZIP codes with the USPS city name Plainfield
ZIP City Type Population Median income Median home
06374 Plainfield , CT Standard 7,838 $71,882 $248,700

Map of Plainfield ZIP codes

06374

The ZIP codes of Plainfield, 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 Plainfield

The nearest larger towns are Norwich (39,973 people, 13 mi), Willimantic (18,096 people, 16 mi) and Storrs (15,207 people, 20 mi).

Towns near Plainfield
TownPopulationDistance
Moosup 2,885 3.2 mi
Jewett City 3,429 6.1 mi
Danielson 4,209 8.9 mi
Norwich 39,973 12.9 mi
Willimantic 18,096 15.7 mi
Putnam 7,120 16.4 mi
Storrs 15,207 19.6 mi
Oxoboxo River 2,782 19.7 mi
Old Mystic 3,340 20.8 mi
Pawcatuck 5,577 21.3 mi
Conning Towers-Nautilus Park 8,460 21.5 mi
Pascoag, RI 4,410 21.8 mi
Westerly, RI 18,411 21.9 mi
Mystic 4,483 22.5 mi

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

Cite this page

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

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