ZIP Code 20634 – Great Mills, Maryland | ZipsCode.us
Home / Maryland ZIP Codes / ZIP Code 20634
ZIP Code 20634
Great Mills, Maryland · St. Mary's
ZIP code 20634 belongs to the city of Great Mills in Maryland (St. Mary's). See all Maryland ZIP Codes.
ZIP code 20634 belongs to Great Mills, Maryland, in St. Mary's. If you are mailing a letter or package to this area, use Great Mills, MD 20634 in the address. On this page you will find the city and county for 20634, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 20634?
The city for ZIP code 20634 is Great Mills, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Great Mills, MD 20634.
ZIP Code 20634 County and State
ZIP code 20634 is located in St. Mary's, Maryland. For a complete list of cities and ZIP codes across the state, see the Maryland ZIP Codes page.
Nearby ZIP Codes in St. Mary's
These ZIP codes are in the same county as 20634:
ZIP Code 20634 on the Map
The map below shows the approximate center of ZIP code 20634, near Great Mills, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 38.2674, -76.4954). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 20634
According to public U.S. Census Bureau data, ZIP code 20634 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 20634
Need the full ZIP+4 code for a specific street address in Great Mills? 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 20634?
ZIP code 20634 is for Great Mills, Maryland.
What county is ZIP code 20634 in?
ZIP code 20634 is in St. Mary's, Maryland.
What state is ZIP code 20634 in?
ZIP code 20634 is in Maryland (MD).
How do I find the ZIP+4 for an address in 20634?
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 20634?
Nearby ZIP codes include 20606 (Abell), 20609 (Avenue), 20618 (Bushwood), 20619 (California), 20620 (Callaway).
Related ZIP Code Tools
Find the ZIP code for any U.S. street address.
See which city and county any ZIP code belongs to.
Get the full 9-digit ZIP code for precise delivery.
Track packages sent to or from any U.S. address.
Search any U.S. ZIP code, city or address — free.