Kunnathur is a panchayat town in Tirupur district in the Indian state of Tamil Nadu. It was previously under the jurisdiction of the Erode district. However kunnathur is in tiruppur district, legislative assembly consistency for kunnathur is Perundurai which is in Erode district.

Kunnathur is famous for producing compressors and loaders, and for its borewells. "AIR COMPRESSOR CITY OF INDIA "

In the 2001 India census, Kunnathur had a population of 7,031. According to the Census, males and females each makeup 50% of the population. Kunnathur has an average literacy rate of 72%, which is higher than the national average of 59.5%. Male literacy is 80%, and female literacy is 64%. In Kunnathur, 9% of the population is under six years of age. The size of the area is approximately 8.94 square kilometers.

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The Kunnathur government hospital, is located in Kunnathur.

There are commercial banks, cooperative banks and agriculture society in Kunnathar including Indian Overseas India, State Bank of India, Tamil Nadu Merchantile Bank, etc.

Kunnathur is generally known as Aathi Kunnathur ("aathi" refers to "ancient") or Air-tech city or Bore-well city in the Kongu nadu region. Kunnathur is home to a historic Lakshmi Narayanan Temple built by the Chera Dynasty in the 12th century. and many other temples are found in Kunnathur including Aranmananai Mariyamman temple (built several hundred years ago), Eswaran temple (built several hundred years ago), Palani Andavar temple, etc.,

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All buses from Tirupur to Gobichettipalayam and Gobichettipalaym to Coimbatore pass through Kunnathur and have a one-minute halt. A bus arrives every 15 to 20 minutes. One also can come to Perumanallur and take the buses for Salem and Coimbatore. The buses from Tirupur to Erode pass through Kunnathur with a one-minute stop. There is a bus every three hours. The closest airport is the Coimbatore International Airport, 98.7 km away. The nearest railway station is TIRUPUR which is 22 km away.

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Schools include:

• NR Karupana Nadar Higher Secondary School,
• Saraswathi Kalvi Nilayam Matriculation Higher Secondary School,
• Kongu Vellalar Nursery and Primary School,
• Kongu Matriculation Higher Secondary School,
• Government Higher Secondary School for Girls, and
• Government Higher Secondary School for Boys,
• Karumanchirai Government School,
• Kumaran Billabong