21042 Frequently Asked Questions

A: ZIP Code 21042 is Located in Ellicott City Maryland. Portions of 21042 are also in Columbia.

A: ZIP Code 21042 is Located Entirely in Howard County Maryland.

A: The Current Sales Tax in ZIP Code 21042 is 6.0%

A: The Area Codes for 21042 are 410, 443 and 667

A: ZIP Code 21042 is in the Maryland 3rd Congressional District.

A: 21042 is within Maryland State House of Delegates District 09A and Maryland State House of Delegates District 09B.

A: ZIP Code 21042 is in Maryland State Senate District 09.

A: The 2022 population of ZIP Code 21042 is 42528. The population growth rate in 21042 is 6.35%. The population density of 21042 is 1,141.

A: The majority race/ethnicity of people residing in 21042 is White (60.52%). The majority race/ethnicity of students attending public schools in 21042 is Asian(39.35%).

A: The median household income in 21042 is $159,032 (2021) and the average adjusted income is $472,250 (2021).