21098Hanover, Maryland UNIQUEDecommissionedCountyAnne Arundel CountyArea code410TimezoneAmerica/New_YorkCoordinates39,19, -76,72
21102Manchester, Maryland STANDARDActiveCountyCarroll CountyArea code223, 410, 443, 667, 717TimezoneAmerica/New_YorkCoordinates39,65, -76,89
21104Marriottsville, Maryland STANDARDActiveCountyHoward CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,35, -76,89
21105Maryland Line, Maryland PO BOXActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,72, -76,65
21106Mayo, Maryland PO BOXActiveCountyAnne Arundel CountyArea code410TimezoneAmerica/New_YorkCoordinates38,89, -76,5
21108Millersville, Maryland STANDARDActiveCountyAnne Arundel CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,05, -76,64
21111Monkton, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,57, -76,58
21113Odenton, Maryland STANDARDActiveCountyAnne Arundel CountyArea code227, 240, 301, 410, 443, 667TimezoneAmerica/New_YorkCoordinates39,05, -76,72
21114Crofton, Maryland STANDARDActiveCountyAnne Arundel CountyArea code227, 240, 301, 410, 443, 667TimezoneAmerica/New_YorkCoordinates39,01, -76,68
21117Owings Mills, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,41, -76,79
21120Parkton, Maryland STANDARDActiveCountyBaltimore CountyArea code223, 410, 443, 667, 717TimezoneAmerica/New_YorkCoordinates39,65, -76,67
21122Pasadena, Maryland STANDARDActiveCountyAnne Arundel CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,11, -76,55
21123Pasadena, Maryland PO BOXActiveCountyAnne Arundel CountyArea code410TimezoneAmerica/New_YorkCoordinates39,11, -76,55
21128Perry Hall, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,41, -76,45
21130Perryman, Maryland PO BOXActiveCountyHarford CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,47, -76,19
21131Phoenix, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,5, -76,56
21132Pylesville, Maryland STANDARDActiveCountyHarford CountyArea code223, 410, 443, 667, 717TimezoneAmerica/New_YorkCoordinates39,68, -76,37
21133Randallstown, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,37, -76,8
21136Reisterstown, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,45, -76,81
21139Riderwood, Maryland PO BOXActiveCountyBaltimore CountyArea code410TimezoneAmerica/New_YorkCoordinates39,4, -76,6
21140Riva, Maryland STANDARDActiveCountyAnne Arundel CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates38,95, -76,59
21144Severn, Maryland STANDARDActiveCountyAnne Arundel CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,13, -76,69
21146Severna Park, Maryland STANDARDActiveCountyAnne Arundel CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,08, -76,57
21150Simpsonville, Maryland PO BOXActiveCountyHoward CountyArea code410TimezoneAmerica/New_YorkCoordinates39,18, -76,88
21152Sparks Glencoe, Maryland STANDARDActiveCountyBaltimore CountyArea code410, 443, 667TimezoneAmerica/New_YorkCoordinates39,54, -76,68