21784 Frequently Asked Questions

A: ZIP Code 21784 is Located in Sykesville Maryland. Portions of 21784 are also in Eldersburg.

A: ZIP Code 21784 is Located Primarily in Carroll County Maryland with Portions in Howard County.

A: The Current Sales Tax in ZIP Code 21784 is 6.0%

A: The Area Codes for 21784 are 410, 443 and 667

A: 21784 is within by the Maryland 2nd Congressional District and the Maryland 3rd Congressional District.

A: 21784 is within Maryland State House of Delegates District 05, Maryland State House of Delegates District 09A and Maryland State House of Delegates District 42C.

A: 21784 is within Maryland State Senate District 05, Maryland State Senate District 09 and Maryland State Senate District 42.

A: The 2022 population of ZIP Code 21784 is 37219. The population growth rate in 21784 is 0.00%. The population density of 21784 is 637.

A: The majority race/ethnicity of people residing in 21784 is White (86.31%). The majority race/ethnicity of students attending public schools in 21784 is White(81.00%).

A: The median household income in 21784 is $125,497 (2021) and the average adjusted income is $367,740 (2021).