21770 Frequently Asked Questions

A: ZIP Code 21770 is Located in Monrovia Maryland. Portions of 21770 are also in Green Valley, Linganore, New Market.

A: ZIP Code 21770 is Located Entirely in Frederick County Maryland.

A: The Current Sales Tax in ZIP Code 21770 is 6.0%

A: The Area Codes for 21770 are 240 and 301

A: ZIP Code 21770 is in the Maryland 6th Congressional District.

A: ZIP Code 21770 is in Maryland State House of Delegates District 04.

A: ZIP Code 21770 is in Maryland State Senate District 04.

A: The 2022 population of ZIP Code 21770 is 7786. The population growth rate in 21770 is 45.21%. The population density of 21770 is 674.

A: The majority race/ethnicity of people residing in 21770 is White (80.04%). The majority race/ethnicity of students attending public schools in 21770 is White(62.93%).

A: The median household income in 21770 is $159,091 (2021) and the average adjusted income is $333,070 (2021).