21057 Frequently Asked Questions

A: ZIP Code 21057 is Located in Glen Arm Maryland. Portions of 21057 are also in Carney, Hampton, Perry Hall.

A: ZIP Code 21057 is Located Entirely in Baltimore County Maryland.

A: The Current Sales Tax in ZIP Code 21057 is 6.0%

A: The Area Codes for 21057 are 410, 443 and 667

A: 21057 is within by the Maryland 1st Congressional District and the Maryland 2nd Congressional District.

A: 21057 is within Maryland State House of Delegates District 07A and Maryland State House of Delegates District 42A.

A: 21057 is within Maryland State Senate District 07 and Maryland State Senate District 42.

A: The 2022 population of ZIP Code 21057 is 4530. The population growth rate in 21057 is 0.00%.

A: The majority race/ethnicity of people residing in 21057 is White (91.22%).

A: The median household income in 21057 is $131,184 (2021) and the average adjusted income is $120,690 (2020).