Kadayanallur is a Municipality town in the Tirunelveli District of Tamil Nadu of India.The most important commodities such as Handloom clothes, matches, fiber, and mud-pots are being manufactured in the town. As of 2011, the town had a population of 90,360
The name Kadayanallur comes from “Kadaikaaleeswara”, the name of the presiding deity of Kadayaleeswarar kovil, a Hindu temple located in Kadayanallur. It is located in the foothills of the Western Ghats near the Courtallam Waterfall and Tenkasi. It is famous for saaral (drizzling), which occurs yearly from May to August. It is also known for its vast paddy and coconut fields. Most of the last generation of residents were farmers; however, many are now employed in various parts of India and in foreign countries such as the United States Of America, Singapore, and thePersian Gulf.
The nearest airport is at Madurai, nearest international airport at Thiruvananthapuram then Kochin and a rail service (converted to broad gauge in 2004 2005), served by Southern Railway (India) is also available.
Kadayanallur is located at 9.08°N 77.35°E. The town is located on the foot of the Western Ghat, and has an average elevation of 191 m (627 ft).
The town has an area of 52.25 skm. The town in general has a dry climate except during the monsoon periods.
According to 2011 census, Kadayanallur had a population of 90,364 with a sex-ratio of 988 females for every 1,000 males, much above the national average of 929. A total of 9,810 were under the age of six, constituting 4,889 males and 4,921 females. Scheduled Castes and Scheduled Tribes accounted for 13.64% and .42% of the population respectively. The average literacy of the town was 71.8%, compared to the national average of 72.99%. The town had a total of 21076 households. There were a total of 34,039 workers, comprising 927 cultivators, 6,839 main agricultural labourers, 3,176 in house hold industries, 20,095 other workers, 3,002 marginal workers, 34 marginal cultivators, 390 marginal agricultural labourers, 569 marginal workers in household industries and 2,009 other marginal workers.