ZIP Code 21758 – Knoxville, Maryland | ZipsCode.us
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ZIP Code 21758
Knoxville, Maryland · Frederick
ZIP code 21758 belongs to the city of Knoxville in Maryland (Frederick). See all Maryland ZIP Codes.
ZIP code 21758 belongs to Knoxville, Maryland, in Frederick. If you are mailing a letter or package to this area, use Knoxville, MD 21758 in the address. On this page you will find the city and county for 21758, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 21758?
The city for ZIP code 21758 is Knoxville, Maryland. When you write an address in this area, the correct format is: Name, Street Address, Knoxville, MD 21758.
ZIP Code 21758 County and State
ZIP code 21758 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 21758:
ZIP Code 21758 on the Map
The map below shows the approximate center of ZIP code 21758, near Knoxville, Maryland. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 39.3479, -77.6513). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 21758
According to public U.S. Census Bureau data, ZIP code 21758 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 21758
Need the full ZIP+4 code for a specific street address in Knoxville? 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 21758?
ZIP code 21758 is for Knoxville, Maryland.
What county is ZIP code 21758 in?
ZIP code 21758 is in Frederick, Maryland.
What state is ZIP code 21758 in?
ZIP code 21758 is in Maryland (MD).
How do I find the ZIP+4 for an address in 21758?
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 21758?
Nearby ZIP codes include 21701 (Frederick), 21702 (Frederick), 21703 (Frederick), 21704 (Frederick), 21705 (Frederick).
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