Dharmapuri district, which came into existence from 2.10.1965 is situated in the North western Corner of Tamil Nadu and is bounded by Tiruvannamalai and Villupuram Districts on the east, Salem District on the South, Krishnagiri District on the north and Kaveri river on the west.

It is located between latitudes N 11 47’ and 11 57’ and longitudes E 78 02’ and 78 40’. The total geographical area of Dharmapuri District is 4497.77 Sq Kms, i.e. 3.46% of Tamil Nadu.