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|• Type||First Grade Municipality|
|• Body||Devakottai Municipality|
|• Total||12.42 km2 (4.80 sq mi)|
|Elevation||52 m (171 ft)|
|• Density||4,200/km2 (11,000/sq mi)|
|Nearest city||Karaikudi , Madurai , Tiruchirappalli|
|Sex ratio||19910:20587 ♂/♀|
|Lok Sabha constituency||Sivaganga|
|Vidhan Sabha constituency||karaikudi|
Devakottai (Tamil:தேவகோட்டை) is a first-grade municipality in the state of Tamil Nadu, India. Located in the Sivaganga district, the town is situated close to the city of Karaikudi , near Rameswaram National Highway Road (NH-210). It is one of the major towns comes under the Chettinad area with rich heritage of houses built with limestone called "Karai Veedu".It is the Second largest township in the district after Karaikudi
As of 2011, the town had a population of 51,865.
The name "Devakottai" is derived from the Tamil word "Devi Kottai", meaning the fort of a Goddess.
Devakottai was an active town in the Indian Independence Movement. The municipal court of Devakottai was burned to the ground during the Quit India Movement. This leads to the town becoming one of the historical landmarks of Tamil Nadu with typical building structures and monuments.
According to the 2011 census, Devakottai had a population of 51,865 with a sex-ratio of 982 females for every 1,000 males, far greater than the national average of 929. A total of 5,209 people were under the age of six, constituting 2,676 males and 2,533 females. Scheduled Castes and Scheduled Tribes accounted for 8.5% and .16% of the population respectively. The average literacy of the town was 80.95%, compared to the national average of 72.99%. In total, the town had 13192 households. In particular, there were a total of 18,696 workers, comprising 865 cultivators, 415 main agricultural laborers, 219 in house hold industries, 14,056 other workers, 3,141 marginal workers, 53 marginal cultivators, 1,011 marginal agricultural laborers, 58 marginal workers in household industries and 2,019 other marginal workers. 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.
Devakottai is situated on Tiruchirappalli-Rameswaram National Highway Road (NH-210). The nearest airport is in Madurai, about 92 km away. The nearest railway station is 'Devakottai Road' which comes under the city limit of Karaikudi , about 10 km from Devakottai,The nearest major railway station is Karaikudi Junction. There are frequent bus services are available for Devakottai. Regular bus services are available to all important cities of Tamil Nadu.
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. Dr Pushpavanam Kuppusamy has composed a Few lines on Devakottai which was sung during the 2011 Kandar Sasti Vizha. 
- Charles Borromeo, a track and field athlete won a gold medal at the 1982 Asian Games in Delhi with a record time of 1:46:81 seconds. He was awarded the Arjuna Award in 1982 and the Padma Shri in 1984 by the Government of India.
- A. R. Lakshmanan, the first Supreme Court Judge from Devakottai, particularly from Nagarathar Community. He was also Chief Justice of the High Court of Kerala, High Court of Andhra Pradesh. He was the president of the National Law Commission. Currently, he is the member representing Tamil Nadu in Mullaperiyar Dam Commission headed by Justice A. Anand.
- M. Karpaga Vinayagam is a Chairperson of the Appellate Tribunal for Electricity (APTEL), Government of India. He was a hon'ble chief justice of Jharkhand High Court and was a judge in the Madras High Court.
- Sri.Rama.Dhinamani Chettiar, a notable freedom fighter who fought against British quit India movement and subsequently convicted for several years.
- "Census Info 2011 Final population totals". Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2013. Retrieved 26 January 2014.
- "Census Info 2011 Final population totals - Devakottai". Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2013. Retrieved 26 January 2014.
- "Population By Religious Community - Tamil Nadu" (XLS). Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2011. Retrieved 13 September 2015.