Tiruvallur district is an administrative district in the South Indian state of Tamil Nadu. The town of Tiruvallur is the district headquarters. The district has a mixture of urban and rural characteristics. The Eastern part of Tiruvallur district is dominated by urban characteristics while the Southern and Northern part of the district has influence of Andhra culture due to its position. As of 2011, the district had a population of 3,728,104 with a sex-ratio of 987 females for every 1,000 males
The district has been divided into four revenue divisions viz, Tiruvallur, Tiruttani, Ambattur, and Ponneri. There are three taluks under Tiruvallur division, two taluks under Tiruttani divisions, two taluks under Ponneri division and five taluks under Ambattur division. There are 46 firkas and 820 revenue villages. Likewise there are 14 blocks, 12 Municipalities and 13 town panchayats which implement rural development activities.