The Arakkonam Municipality was constituted as 3rd Grade Municipality on 01.10.1958, it was upgraded as 2nd grade municipality on 1.5.74 and now it is a 1st grade municipality from 17.4.1984. The area of this municipality is 9.06 Sq.Km. The population is 78395 as per the census 2011. This is also one of the assembly and parliamentary constituencies.
This Municipality has 36 wards. Out of this 5 wards for SC General, 5 wards for SC Women, 13 wards for General women and 13 wards for General.