As of 2001[update] India census,[2] Kadambur had a population of 4379. Males constitute 49% of the population and females 51%. Kadambur has an average literacy rate of 68%, higher than the national average of 59.5%: male literacy is 76%, and female literacy is 61%. In Kadambur, 10% of the population is under 6 years of age.
Nearby villages include Kalugasalapuram, Chockalingapuram, Onamaakulam, Kallathikinaru, Malaipatti, Parivillikottai and Kollankinar.
Schools
Sandrore Middle School (Saraswathi Vidyalaya)
K.A.R.M.George Middle School
Hindu Nadar's Higher Secondary School
Temples
Ambigai Parasakthi Sri Mariamman Temple (Kadambur Hindu Nadar Uravinmurai Sangam)
Ambigai Sri Kaliamman Temple (Kadambur Hindu Nadar Uravinmurai Sangam)
Lord Siva Temple - Sri Udayanambesvar
Arulmigu Sri Periya Karuppasamy Temple
Sri Arulmigu Periya Andavar Temple
Sudalaimaadan Temple
Sri Narayana Swamy Temple
Arulmigu Sri Karuppa swami, Sri Ullakamman Kovil, (JaminKadambur Maravar Samuthayam).
Private bus companies running from/to Kadambur include Selva Vinayagar Transport, SSP Transport, Periyaraja Transport and Veni Transport, Chepparai which links Tirunelveli, Tuticorin, Kovilpatti, Vilathikulam, Pasuvanthanai and other nearby villages.
Utilities
Hospital
Govt Hospital.
TN Somasundaram Nadar & Saraswathi Ammamal Memorial Hospital.