Alphabetical list of the 30 districts
(Year 2000, GIS, NIC, Tamil Nadu unit)

• Ariyalur [DT] (ALR)
• Chennai [DT] (CHN)
• Coimbatore [DT] (CBE)
• Cuddalore [DT] (CDL)
• Dharmapuri [DT] (DMP)
• Dindigul [DT] (DGL)
• Erode [DT] (ERD)
• Kancheepuram [DT] (KAN)
• Kanyakumari [DT] (KNY)
• Karur [DT] (KRR)
• Madurai [DT] (MDU)
• Nagapattinam [DT] (NAG)
• Namakkal [DT] (NAM)
• Nilgiri [DT] (NIL)
• Perambalur [DT] (PBL)
• Pudukkottai [DT] (PDK)
• Ramanathapuram [DT] (RAM)
• Salem [DT] (SLM)
• Sivaganga [DT] (SIV)
• Thanjavur [DT] (TNJ)
• Theni [DT] (THN)
• Thiruvarur [DT] (TVR)
• Thoothukkudi [DT] (TTK)
• Tiruchirapalli [DT] (TRI)
• Tirunelveli [DT] (TNV)
• Tiruvallur [DT] (TVL)
• Tiruvannamalai [DT] (TVM)
• Vellore [DT] (VEL)
• Villupuram [DT] (VPM)
• Virudhunagar [DT] (VRD)