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/MD/CLARKSVILLE

Clarksville ZIP code, Maryland

The ZIP code for Clarksville, MD is 21029, and its area codes are 410, 443 and 667.

USPS city name
1 ZIP code
Population
13,607
Area codes
410, 443, 667

NANPA lists no telephone rate centre for Clarksville itself, so these are the area codes of the nearest one, Ellicott City (1.8 miles). A town on an area-code boundary can differ from its neighbour.

Clarksville in numbers

About 13,607 people live in Clarksville, in 4,056 households. The median household income is $243,542 a year, 2.3 times the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $912,100 (2.2 times the Maryland median).

Population13,607Clarksville13,607
Households4,056Clarksville4,056
Median household income$243,542Clarksville$243,542Maryland$103,678US $80,734
Median home value$912,100Clarksville$912,100Maryland$419,900US $332,700

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

ZIP codes addressed as Clarksville

ZIP codes with the USPS city name Clarksville
ZIP City Type Population Median income Median home
21029 Clarksville , MD Standard 13,607 $243,542 $912,100

Map of Clarksville ZIP codes

21029

The ZIP codes of Clarksville, MD, 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 Clarksville

The nearest larger towns are Columbia (104,338 people, 5.4 mi), Olney (35,797 people, 7.7 mi) and Cloverly (16,646 people, 7.8 mi).

Towns near Clarksville
TownPopulationDistance
Fulton 5,677 4.9 mi
Ashton-Sandy Spring 5,630 5.0 mi
Columbia 104,338 5.4 mi
Scaggsville 10,564 6.5 mi
Burtonsville 10,203 6.5 mi
West Laurel 4,428 7.7 mi
Olney 35,797 7.7 mi
Cloverly 16,646 7.8 mi
Ellicott City 75,257 8.0 mi
North Laurel 25,563 8.4 mi
Savage 8,239 8.7 mi
Fairland 26,231 9.2 mi
Leisure World 8,882 9.6 mi
Layhill 5,497 9.6 mi

More nearby: every ZIP code in Howard County · Maryland ZIP codes

Cite this page

zipcodes.pro. “Clarksville, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/clarksville

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