Thiruvallur District General Information

Thiruvallur district, a newly formed district bifurcated from the erstwhile Chengalpattu district (on 1st January 1997), is located in the North East part of Tamil Nadu.

North Latitude between 12°15' and 13°15'
East Longitude between 79°15' and 80°20'

The district is surrounded by Kancheepuram district in the South, Vellore district in the West. Bay of Bengal in the East and Andhra Pradesh State in the North. The district spreads over an area of about 3422 Sq.kms.

An insight into the early history of this region shows that the region was reined by kingdoms such as the Pallavas, the Golkondas, the Mughals, the French, the Dutch and also the British.

The Coastal region is mostly flat while certain areas in Tiruttani and Pallipattu taluks are undulated and even hilly. The types of soil predominantly found are red non-calcareous and coastal alluvial. Also found are sandy soil mixed with soda or other alkali. The soil found in the coastal region is of the erinaceous type (sandy), suitable for casuarinas plants.

The population of the district is 27,38,866 persons with 51% male and 49% female as per the census 2001 (provisional).

The district has been divided into three revenue divisions viz, Tiruvallur, Tiruttani and Ponnari. There are three taluks under Thiruvallur division, two taluks under Tiruttani divisions and three taluks under Ponneri division. There are 46 firkas and 820 revenue villages. Likewise there are 14 blocks, 6 Municipalities and 19 town panchayats which implement rural development activities.

The average rainfall of the district is 1104.4 mm, of which the North East monsoon contributes to the tune of 690 mm. The actual rainfall received during the agricultural year 2001 - 02 is 1164.4mm.

The average temperature of the district is
Maximum 37.9°C
Minimum 18.5°C

Like other parts of Tamil Nadu, hot climate prevails during the month of April - May and humid climate during the rest of the year except December - February when it is slightly cold.

Animal husbandry is a subsidiary occupation of the district due to the presence of a number of small and marginal farmers. Presently, there are four Government Schemes in operation Viz., Backyard poultry farm, Buffalo Rearing Scheme, Special Animal Husbandry Programme and special campaign to protect animals. There are 5 Veterinary Hospitals, 24 Veterinary Dispensaries, 77 sub-centres and 14 mobile veterinary units catering to the needs of the farming community.

The total coastal area of the district is about 49803 ha and has a coast line of 80 kms for marine fisheries. Prawn/shrimp culture is famous at the coast line of Gummidipoondi and Minjur. The total fish production is to the tune of 11372 tonnes.