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/MA/CHARLESTOWN

Charlestown ZIP code, Massachusetts

The ZIP code for Charlestown, MA is 02129, and its area codes are 617 and 857.

USPS city name
1 ZIP code
Population
20,032
Area codes
617, 857

Charlestown in numbers

About 20,032 people live in Charlestown, in 9,606 households. The median household income is $157,247 a year, 51% above the Massachusetts median of $103,960 (US: $80,734). The median owner-occupied home is valued at $912,000 (62% above the Massachusetts median).

Population20,032Charlestown20,032
Households9,606Charlestown9,606
Median household income$157,247Charlestown$157,247Massachusetts$103,960US $80,734
Median home value$912,000Charlestown$912,000Massachusetts$562,100US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Charlestown. 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
02129 Charlestown , MA Standard 20,032 $157,247 $912,000

Map of Charlestown ZIP codes

02129

The ZIP codes of Charlestown, MA, 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 Everett (50,045 people, 1.8 mi), Chelsea (39,908 people, 1.9 mi) and Somerville (81,036 people, 2.2 mi).

Towns near Charlestown
TownPopulationDistance
Everett 50,045 1.8 mi
Chelsea 39,908 1.9 mi
Somerville 81,036 2.2 mi
Cambridge 118,796 2.9 mi
Malden 65,906 3.4 mi
Boston 666,442 3.6 mi
Medford 59,354 3.9 mi
Revere 60,012 4.6 mi
Winthrop Town 18,759 4.6 mi
Melrose 29,650 5.3 mi
Brookline 63,266 5.6 mi
Arlington 46,350 5.9 mi
Watertown 35,543 6.0 mi
Belmont 27,175 6.2 mi

More nearby: every ZIP code in Suffolk County · Massachusetts ZIP codes

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.