ZIP Code 21821 – Deal Island, Maryland | ZipsCode.us
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ZIP Code 21821
Deal Island, Maryland · Somerset
ZIP code 21821 belongs to the city of Deal Island in Maryland (Somerset). See all Maryland ZIP Codes.
ZIP code 21821 belongs to Deal Island, Maryland, in Somerset. If you are mailing a letter or package to this area, use Deal Island, MD 21821 in the address. On this page you will find the city and county for 21821, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 21821?
The city for ZIP code 21821 is Deal Island, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Deal Island, MD 21821.
ZIP Code 21821 County and State
ZIP code 21821 is located in Somerset, Maryland. For a complete list of cities and ZIP codes across the state, see the Maryland ZIP Codes page.
Nearby ZIP Codes in Somerset
These ZIP codes are in the same county as 21821:
ZIP Code 21821 on the Map
The map below shows the approximate center of ZIP code 21821, near Deal Island, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 38.1533, -75.9496). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 21821
According to public U.S. Census Bureau data, ZIP code 21821 is home to a community in Maryland. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 21821
Need the full ZIP+4 code for a specific street address in Deal Island? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 21821?
ZIP code 21821 is for Deal Island, Maryland.
What county is ZIP code 21821 in?
ZIP code 21821 is in Somerset, Maryland.
What state is ZIP code 21821 in?
ZIP code 21821 is in Maryland (MD).
How do I find the ZIP+4 for an address in 21821?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 21821?
Nearby ZIP codes include 21817 (Crisfield), 21824 (Ewell), 21836 (Manokin), 21838 (Marion Station), 21853 (Princess Anne).
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