21228 is zip code located in Catonsville, Maryland. The population is 48,191, making 21228 the largest zipcode in Catonsville and the 4th largest in Baltimore County.
There are 3 public schools in 21228 with an average Homefacts rating of B+. , and there are 52 registered sex offenders residing in the zip code 21228. Unemployment in 21228 is moderate.