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zipcodes.pro — CITY/MD/COBB-ISLAND

Cobb Island ZIP code, Maryland

The ZIP code for Cobb Island, MD is 20625, and its area codes are 240, 301 and 227.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
916
Area codes
240, 301, 227

NANPA lists no telephone rate centre for Cobb Island itself, so these are the area codes of the nearest one, Leonardtown (11.5 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Cobb Island uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Cobb Island in numbers

About 916 people live in Cobb Island, in 362 households. The median owner-occupied home is valued at $275,000 (35% below the Maryland median). The median age is 50.0; 9.1% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 51 minutes.

Population916Cobb Island916
Households362Cobb Island362
Median age50.0Cobb Island50.0Maryland39.4US 38.9
Median home value$275,000Cobb Island$275,000Maryland$419,900US $332,700
Bachelor's degree or higher9.1%Cobb Island9.1%Maryland43.4%US 35.7%
Mean commute51.0 minCobb Island51.0 minMaryland31.1 minUS 26.4 min
Population density1,463 / sq miCobb Island1,463 / sq mi

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

ZIP codes addressed as Cobb Island

ZIP codes with the USPS city name Cobb Island
ZIP City Type Population Median income Median home
20625 Cobb Island , MD Standard 849 — $245,300

Other ZIP codes overlapping Cobb Island

These ZIP codes cover part of Cobb Island but are addressed as somewhere else.

ZIP codes overlapping Cobb Island
ZIP City Type Population Median income Median home
20661 Mount Victoria , MD Standard 0 — —
20664 Newburg , MD Standard 3,138 $88,438 $475,700

Map of Cobb Island ZIP codes

20625

The ZIP codes of Cobb Island, 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 Cobb Island

The nearest larger towns are Colonial Beach, VA (3,966 people, 7.9 mi), Leonardtown (4,808 people, 12 mi) and Mechanicsville (1,395 people, 13 mi).

Towns near Cobb Island
TownPopulationDistance
Colonial Beach, VA 3,966 7.9 mi
Leonardtown 4,808 11.7 mi
Dahlgren, VA 3,350 12.9 mi
Wildewood 7,552 16.6 mi
Golden Beach 3,830 17.6 mi
King George, VA 4,851 18.2 mi
California 13,136 19.5 mi
La Plata 10,683 20.4 mi
Lexington Park 13,252 22.0 mi
Drum Point 3,589 22.9 mi
Lusby 2,595 23.3 mi
Prince Frederick 2,955 24.0 mi
Waldorf 82,943 24.2 mi
Chesapeake Ranch Estates 9,241 24.3 mi

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

Cite this page

zipcodes.pro. “Cobb Island, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/cobb-island

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