Kerala has 14 districts and they are the revenue divisions of the State. The districts are further divided into taluks and villages. Each district has a head quarters where the administrative offices function. On the basis of geographical, historical and cultural similarities, the districts are generally grouped into North Kerala (Kasaragod, Kannur, Wayanad, Kozhikkod, Malappuram) Central Kerala (Palakkad, Thrissur, Ernakulam, Idukki) South Kerala (Thiruvananthapuram, Kollam, Alappuzha, Pathanamthitta, Kottayam).