Most of the Mannan community resides in Thodupuzha, Devikulam, Udumbanchola and Peerumedu taluks of Idukki District. Knowledge of agricultural practice particularly related to shifting cultivation is notable.
Internal social division of the community is based on Clans, Aravakudi and Panikudi are the two Clans. They are the only Cephalous tribe in the State, the Head is called by the name Kozhimala Raja Mannan, and a Manthri serves under him. Each settlement is headed by Kanikkaran and Valiya Ulantari and Ilaya Vattam assist him as per the traditional social division of the community.
The community used to practice Annam Vaykka e.i., shifting cultivation. Chama, Ragi, Cholam, Thina, Paddy, Cheeni Kizhangu/Cheenivala are commonly cultivated. The traditional deity of the community is Muththiyamma (Madhura Meenakshi)
The major art form of the community is Aattu performed by men accompanied by instruments like Charal, Chilanka, Moththalam. As per the socio-economic survey conducted by Scheduled Tribe Development Department of Kerala in 2013, the total population of the community was enumerated as 9345. As per the 2011 Census, the total population of the community is 9780 including 4792 males and 4988 females. The sex ratio is 1041 and the literacy rate of the community is noted as 69.3 The work participation rate is enumerated as 53.1.