21009 is zip code located in Abingdon, Maryland. The population is 29,322, making 21009 the largest zipcode in Abingdon and the 2nd largest in Harford County.
There are 3 public schools in 21009 with an average Homefacts rating of B. , and there are 22 registered sex offenders residing in the zip code 21009. Unemployment in 21009 is moderate.