21639 Frequently Asked Questions

A: ZIP Code 21639 is Located in Greensboro Maryland.

A: ZIP Code 21639 is Located Entirely in Caroline County Maryland.

A: The Current Sales Tax in ZIP Code 21639 is 6.0%

A: The Area Codes for 21639 are 410, 443 and 667

A: ZIP Code 21639 is in the Maryland 1st Congressional District.

A: 21639 is within Maryland State House of Delegates District 36 and Maryland State House of Delegates District 37B.

A: 21639 is within Maryland State Senate District 36 and Maryland State Senate District 37.

A: The 2022 population of ZIP Code 21639 is 4734. The population growth rate in 21639 is 7.51%. The population density of 21639 is 136.

A: The majority race/ethnicity of people residing in 21639 is White (86.89%). The majority race/ethnicity of students attending public schools in 21639 is Hispanic(46.96%).

A: The median household income in 21639 is $54,882 (2021) and the average adjusted income is $320,960 (2021).