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/CHARLESTOWN

Charlestown ZIP code, New Hampshire

The ZIP code for Charlestown, NH is 03603, and its area code is 603.

USPS city name
1 ZIP code
Population
659
Area code
603

Charlestown in numbers

About 659 people live in Charlestown, in 270 households. The median household income is $31,078 a year, 69% below the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $119,800 (70% below the New Hampshire median), and median gross rent is $1,082 a month. The median age is 40.4; 13.4% of adults 25 and over hold a bachelor's degree or higher (40.6% across New Hampshire); the average commute takes 19 minutes.

Population659Charlestown659
Households270Charlestown270
Median age40.4Charlestown40.4New Hampshire43.3US 38.9
Median household income$31,078Charlestown$31,078New Hampshire$99,031US $80,734
Median home value$119,800Charlestown$119,800New Hampshire$402,500US $332,700
Median gross rent$1,082Charlestown$1,082New Hampshire$1,491US $1,413
Bachelor's degree or higher13.4%Charlestown13.4%New Hampshire40.6%US 35.7%
Mean commute18.5 minCharlestown18.5 minNew Hampshire26.7 minUS 26.4 min
Population density692 / sq miCharlestown692 / sq mi

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

ZIP codes addressed as Charlestown

ZIP codes with the USPS city name Charlestown
ZIP City Type Population Median income Median home
03603 Charlestown , NH Standard 5,238 $56,731 $230,400

Map of Charlestown ZIP codes

03603

The ZIP codes of Charlestown, 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 Charlestown

The nearest larger towns are Springfield, VT (4,237 people, 5.2 mi), Bellows Falls, VT (2,891 people, 7.2 mi) and Chester, VT (1,298 people, 9.0 mi).

Towns near Charlestown
TownPopulationDistance
Springfield, VT 4,237 5.2 mi
Bellows Falls, VT 2,891 7.2 mi
Claremont 13,078 11.3 mi
Newport 4,758 15.3 mi
Keene 22,939 20.3 mi
Brattleboro, VT 7,657 26.7 mi
West Brattleboro, VT 2,749 27.7 mi
Lebanon 14,999 28.9 mi
White River Junction, VT 3,364 29.0 mi

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

Cite this page

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

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