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/NH/CHESTERFIELD

Chesterfield ZIP code, New Hampshire

The ZIP code for Chesterfield, NH is 03443, and its area code is 603.

USPS city name
1 ZIP code
Population
581
Area code
603

NANPA lists no telephone rate centre for Chesterfield itself, so these are the area codes of the nearest one, West Chesterfield (2.3 miles). A town on an area-code boundary can differ from its neighbour.

Chesterfield in numbers

About 581 people live in Chesterfield, in 297 households. The median owner-occupied home is valued at $373,300 (7% below the New Hampshire median).

Population581Chesterfield581
Households297Chesterfield297
Median home value$373,300Chesterfield$373,300New Hampshire$402,500US $332,700

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

ZIP codes addressed as Chesterfield

ZIP codes with the USPS city name Chesterfield
ZIP City Type Population Median income Median home
03443 Chesterfield , NH Standard 581 — $373,300

Map of Chesterfield ZIP codes

03443

The ZIP codes of Chesterfield, NH, 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 Chesterfield

The nearest larger towns are Brattleboro, VT (7,657 people, 4.7 mi), Hinsdale (1,580 people, 5.5 mi) and West Brattleboro, VT (2,749 people, 6.9 mi).

Towns near Chesterfield
TownPopulationDistance
Brattleboro, VT 7,657 4.7 mi
West Brattleboro, VT 2,749 6.9 mi
Keene 22,939 10.0 mi
Bellows Falls, VT 2,891 18.3 mi
Greenfield, MA 17,664 18.8 mi
Turners Falls, MA 4,124 19.4 mi
Orange, MA 3,737 20.3 mi
Athol, MA 8,801 22.5 mi
Jaffrey 3,277 22.8 mi
Winchendon, MA 4,331 25.2 mi
Peterborough 2,539 25.6 mi
Baldwinville, MA 2,528 26.8 mi
Springfield, VT 4,237 29.5 mi

More nearby: every ZIP code in Cheshire County · New Hampshire ZIP codes

Cite this page

zipcodes.pro. “Chesterfield, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/chesterfield

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