ZIP code of Knoxville (MD) is 21716. Below you can find map of Knoxville, or look up other ZIP codes in Maryland or other US states. If Knoxville's ZIP code is duplicated, and other places have same ZIP code number, you can use our ZIP code searcher by number 21716.
Knoxville have more then one ZIP code. List of all Knoxville's ZIP codes: 21716, 21758.