ZIP Code 21770 – Monrovia, Maryland | ZipsCode.us
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ZIP Code 21770
Monrovia, Maryland · Frederick
ZIP code 21770 belongs to the city of Monrovia in Maryland (Frederick). See all Maryland ZIP Codes.
ZIP code 21770 belongs to Monrovia, Maryland, in Frederick. If you are mailing a letter or package to this area, use Monrovia, MD 21770 in the address. On this page you will find the city and county for 21770, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 21770?
The city for ZIP code 21770 is Monrovia, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Monrovia, MD 21770.
ZIP Code 21770 County and State
ZIP code 21770 is located in Frederick, Maryland. For a complete list of cities and ZIP codes across the state, see the Maryland ZIP Codes page.
Nearby ZIP Codes in Frederick
These ZIP codes are in the same county as 21770:
ZIP Code 21770 on the Map
The map below shows the approximate center of ZIP code 21770, near Monrovia, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 39.3512, -77.2494). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 21770
According to public U.S. Census Bureau data, ZIP code 21770 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 21770
Need the full ZIP+4 code for a specific street address in Monrovia? 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 21770?
ZIP code 21770 is for Monrovia, Maryland.
What county is ZIP code 21770 in?
ZIP code 21770 is in Frederick, Maryland.
What state is ZIP code 21770 in?
ZIP code 21770 is in Maryland (MD).
How do I find the ZIP+4 for an address in 21770?
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 21770?
Nearby ZIP codes include 21701 (Frederick), 21702 (Frederick), 21703 (Frederick), 21704 (Frederick), 21705 (Frederick).
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