Geographically it covers the Taunus mountains. The highest elevation of the Taunus, the 881 meter high Großer Feldberg, is in the district. Lowest elevation of the district with 130m is the village Ober Erlenbach. The wealthy towns in the district's densely populated southern part belong to the Frankfurt urban area.
The coat of arms is a combination of the arms of the Obertaunus district in the left half and the Usingen district in the right half. It shows a lion, the left half in the red-white striped style of the Hesse lion, the right side the golden color lion of Nassau. Additionally in the left four bells which were taken from the counts of Kronberg, and in the right four trefoils from the coat of arms of the city of Usingen.