21043 is zip code located in Ellicott City, Maryland. The population is 41,498, making 21043 the largest zipcode in Ellicott City and the largest in Howard County.
There are 9 public schools in 21043 with an average Homefacts rating of A. , and there are 14 registered sex offenders residing in the zip code 21043. Unemployment in 21043 is moderate.