[2] At that time, Campbell County, which had already gone bankrupt, was also ceded to Fulton, giving it its 70-mile (110 km) long irregular shape along the Chattahoochee River.

The cession of Roswell (including everything east of Willeo Creek) made the new county more contiguous, though a very narrow strip (what is now the Dunwoody Panhandle of Sandy Springs, ceded to Milton from DeKalb) actually already connected the two sections.

In 1900, there were several other post offices besides Alpharetta: Arnold, Coker, Dinsmore, Field's Cross Roads, Freemansville, McClure, Mazeppa, Ocee, Skelton, Stono, and Warsaw.

Any change would require a constitutional amendment, supported by two-thirds of each house in the General Assembly and by over half of all voters statewide in a referendum.

A resolution to amend the Georgia Constitution to ease the political path for resurrection of the county was reintroduced by the area's legislators in the 2009 session as HR 21 and SR 392.

[10] The constitutional amendment would require two-thirds of each house and half of all voters in a statewide referendum to approve the re-creation of former counties (Milton and Campbell).

[11] Milton County originally bordered Gwinnett to the southeast, Forsyth to the northeast, Cherokee to the northwest, Cobb to the southwest, and DeKalb (Chamblee and Dunwoody) to the south.