Harford County, MD Zip Code and Maps
Harford County has 20 zip codes. See all zip codes in List View or use the map below to review.
Harford County Zip Codes by Population
21014 35,08521009 29,58721015 28,05321040 25,02721001 22,44521050 18,89721078 18,65321085 16,37721047 11,66221017 7,52721084 7,35821154 6,67821028 3,64921034 3,39321132 2,54821005 2,49721160 2,34921130 36421010 9321018