Located in the Sivaganga district, the town is situated close to the Karaikudi, near Rameswaram National Highway Road (NH-210).

It is one of the major cities comes under the Chettinad area with rich heritage of houses built with limestone called "Karai Veedu".

This leads to the town becoming one of the historical landmarks of Tamil Nadu with typical building structures and monuments.

According to 2011 census of India, Total Devakottai population is 76,037 people are living in this Taluk, of which 38,448 are male and 37,589 are female.

[6] As per the religious census of 2011, Devakottai had 82.85% Hindus, 9.92% Muslims, 7.% Christians, 0.02% Sikhs, 0.01% Jains and 0.2% following other religions.

[citation needed] The town is known for its rich and traditional culture where the community of Nagarathars play a big role.

The Kandar Sasti Vizha, a festival for the rich culture of Devakottai, has been conducted by Kandar Sasti Vizha Kazhagam for the past 68 years (as of the year 2013) at the Nagara Sivan Kovil, at Devakottai.