ZIP Code 20851 – Rockville, Maryland | ZipsCode.us
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ZIP Code 20851
Rockville, Maryland · Montgomery
ZIP code 20851 belongs to the city of Rockville in Maryland (Montgomery). See all Maryland ZIP Codes.
ZIP code 20851 belongs to Rockville, Maryland, in Montgomery. If you are mailing a letter or package to this area, use Rockville, MD 20851 in the address. On this page you will find the city and county for 20851, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 20851?
The city for ZIP code 20851 is Rockville, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Rockville, MD 20851.
ZIP Code 20851 County and State
ZIP code 20851 is located in Montgomery, Maryland. For a complete list of cities and ZIP codes across the state, see the Maryland ZIP Codes page.
Nearby ZIP Codes in Montgomery
These ZIP codes are in the same county as 20851:
ZIP Code 20851 on the Map
The map below shows the approximate center of ZIP code 20851, near Rockville, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 39.0763, -77.1234). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 20851
According to public U.S. Census Bureau data, ZIP code 20851 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 20851
Need the full ZIP+4 code for a specific street address in Rockville? 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 20851?
ZIP code 20851 is for Rockville, Maryland.
What county is ZIP code 20851 in?
ZIP code 20851 is in Montgomery, Maryland.
What state is ZIP code 20851 in?
ZIP code 20851 is in Maryland (MD).
How do I find the ZIP+4 for an address in 20851?
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 20851?
Nearby ZIP codes include 20810 (Bethesda), 20811 (Bethesda), 20812 (Glen Echo), 20813 (Bethesda), 20814 (Bethesda).
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