ZIP Code 21104 – Marriottsville, Maryland | ZipsCode.us
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ZIP Code 21104
Marriottsville, Maryland · Carroll
ZIP code 21104 belongs to the city of Marriottsville in Maryland (Carroll). See all Maryland ZIP Codes.
ZIP code 21104 belongs to Marriottsville, Maryland, in Carroll. If you are mailing a letter or package to this area, use Marriottsville, MD 21104 in the address. On this page you will find the city and county for 21104, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 21104?
The city for ZIP code 21104 is Marriottsville, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Marriottsville, MD 21104.
ZIP Code 21104 County and State
ZIP code 21104 is located in Carroll, Maryland. For a complete list of cities and ZIP codes across the state, see the Maryland ZIP Codes page.
Nearby ZIP Codes in Carroll
These ZIP codes are in the same county as 21104:
ZIP Code 21104 on the Map
The map below shows the approximate center of ZIP code 21104, near Marriottsville, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 39.3342, -76.9132). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 21104
According to public U.S. Census Bureau data, ZIP code 21104 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 21104
Need the full ZIP+4 code for a specific street address in Marriottsville? 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 21104?
ZIP code 21104 is for Marriottsville, Maryland.
What county is ZIP code 21104 in?
ZIP code 21104 is in Carroll, Maryland.
What state is ZIP code 21104 in?
ZIP code 21104 is in Maryland (MD).
How do I find the ZIP+4 for an address in 21104?
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 21104?
Nearby ZIP codes include 21048 (Finksburg), 21074 (Hampstead), 21088 (Lineboro), 21102 (Manchester), 21157 (Westminster).
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