21921 is zip code located in Elkton, Maryland. The population is 44,090, making 21921 the largest zipcode in Elkton and the largest in Cecil County.
There are 10 public schools in 21921 with an average Homefacts rating of C. The total crime rate for Elkton is moderate , and there are 103 registered sex offenders residing in the zip code 21921. Unemployment in 21921 is very high.
Zip codes within Elkton include 21922.