21758 Frequently Asked Questions

A: ZIP Code 21758 is Located in Knoxville Maryland. Portions of 21758 are also in Brunswick, Garretts Mill, Rosemont, Sandy Hook, Yarrowsburg, Brownsville.

A: ZIP Code 21758 is Located Primarily in Frederick County Maryland with Portions in Washington County.

A: The Current Sales Tax in ZIP Code 21758 is 6.0%

A: The Area Codes for 21758 are 240 and 301

A: ZIP Code 21758 is in the Maryland 6th Congressional District.

A: 21758 is within Maryland State House of Delegates District 04 and Maryland State House of Delegates District 02A.

A: 21758 is within Maryland State Senate District 02 and Maryland State Senate District 04.

A: The 2022 population of ZIP Code 21758 is 4610. The population growth rate in 21758 is -8.05%. The population density of 21758 is 127.

A: The majority race/ethnicity of people residing in 21758 is White (88.19%). The majority race/ethnicity of students attending public schools in 21758 is White(89.71%).

A: The median household income in 21758 is $96,863 (2021) and the average adjusted income is $332,490 (2021).