21163 is zip code located in Ellicott City, Maryland. The population is 7,373, making 21163 the 3rd largest zipcode in Ellicott City and the 8th largest in Howard County.
There are 0 public schools in 21163 with an average Homefacts rating of NA. , and there are 2 registered sex offenders residing in the zip code 21163. Unemployment in 21163 is moderate.
Zip codes within Ellicott City include 21041, 21042 and 21043.