| Post Office | Pin Code |
| Adyar SO (Chennai) Pin Code | 600020 |
| Agaram SO Pin Code | 600082 |
| Aminjikarai SO Pin Code | 600030 |
| Anna Nagar East SO Pin Code | 600102 |
| Anna Nagar SO (Chennai) Pin Code | 600040 |
| Anna Nagar Western Extn SO Pin Code | 600101 |
| Anna Road HO Pin Code | 600002 |
| Arumbakkam SO Pin Code | 600106 |
| Ashoknagar SO (Chennai) Pin Code | 600083 |
| Aynavaram SO Pin Code | 600023 |
| Besantnagar SO Pin Code | 600090 |
| Chennai GPO Pin Code | 600001 |
| Chepauk SO Pin Code | 600005 |
| Chetput SO Pin Code | 600031 |
| Chintadripet SO Pin Code | 600002 |
| Choolaimedu SO Pin Code | 600094 |
| D G Vaishnav College SO Pin Code | 600106 |
| Edapalayam SO Pin Code | 600003 |
| Egmore ND SO Pin Code | 600008 |
| Egmore SO Pin Code | 600008 |
| Ekkaduthangal SO Pin Code | 600032 |
| Engineering College SO (Chennai) Pin Code | 600025 |
| Erukkancheri BO Pin Code | 600118 |
| Ethiraj Salai SO Pin Code | 600008 |
| Flower Bazaar SO Pin Code | 600001 |
| Flowers Road SO Pin Code | 600084 |
| Fort St George SO Pin Code | 600009 |
| G K M Colony SO Pin Code | 600082 |
| Gopalapuram SO (Chennai) Pin Code | 600086 |
| Govt Stanley Hospital SO Pin Code | 600001 |
| Greams Road SO Pin Code | 600006 |
| Guindy Industrial Estate SO Pin Code | 600032 |
| Guindy North SO Pin Code | 600015 |
| High Court Building SO (Chennai) Pin Code | 600104 |
| Hindi Prachar Sabha SO Pin Code | 600017 |
| Icf Colony SO Pin Code | 600038 |
| Indian Institute Of Technology SO Pin Code | 600036 |
| Jafferkhanpet SO Pin Code | 600083 |
| Jawahar Nagar SO (Chennai) Pin Code | 600082 |
| Kalaignar Karunanidhi Nagar SO Pin Code | 600078 |
| Kasturibai Nagar SO Pin Code | 600020 |
| Kilpauk Medical College SO Pin Code | 600010 |
| Kilpauk SO Pin Code | 600010 |
| Kodambakkam SO Pin Code | 600024 |
| Kodungaiyur SO Pin Code | 600118 |
| Kotturpuram SO Pin Code | 600085 |
| Koyambedu SO Pin Code | 600107 |
| Koyambedu Wholesale Market Com SO Pin Code | 600092 |
| Kumaran Nagar SO Pin Code | 600082 |
| Lloyds Estate SO Pin Code | 600014 |
| Loyola College SO Pin Code | 600034 |
| Madras Electricity System SO Pin Code | 600002 |
| Madras Medical College SO Pin Code | 600003 |
| Madras University SO Pin Code | 600005 |
| Mambalam RS SO Pin Code | 600033 |
| Mandaveli SO Pin Code | 600004 |
| Mannady SO (Chennai) Pin Code | 600001 |
| Medavakkam Tank Road SO Pin Code | 600010 |
| Mint Building SO Pin Code | 600001 |
| MPT AO SO Pin Code | 600001 |
| Mylapore HO Pin Code | 600004 |
| Nandanam SO Pin Code | 600035 |
| Nungambakkam High Road SO Pin Code | 600034 |
| Nungambakkam SO Pin Code | 600034 |
| Old College Buildings SO Pin Code | 600006 |
| Park Town HO Pin Code | 600003 |
| Perambur Barracks SO Pin Code | 600012 |
| Perambur North SO Pin Code | 600011 |
| Perambur SO Pin Code | 600011 |
| Pr Accountant General SO Pin Code | 600018 |
| Puliyanthope SO Pin Code | 600012 |
| Raja Annamalaipuram SO Pin Code | 600028 |
| Rajaji Bhavan SO Pin Code | 600090 |
| Rajbhavan SO (Chennai) Pin Code | 600022 |
| Ramakrishna Nagar SO (Chennai) Pin Code | 600028 |
| Rayapuram SO Pin Code | 600013 |
| Ripon Buildings SO Pin Code | 600003 |
| Royapettah SO Pin Code | 600014 |
| Rv Nagar BO Pin Code | 600118 |
| Saidapet SO (Chennai) Pin Code | 600015 |
| Saligramam SO Pin Code | 600093 |
| Sembiam SO Pin Code | 600011 |
| Shastri Bhavan SO Pin Code | 600006 |
| Shastri Nagar SO (Chennai) Pin Code | 600020 |
| Shenoy Nagar SO Pin Code | 600030 |
| Sowcarpet SO Pin Code | 600001 |
| Teynampet SO Pin Code | 600018 |
| Teynampet West SO Pin Code | 600006 |
| Thygarayanagar HO Pin Code | 600017 |
| Thygarayanagar North ND SO Pin Code | 600017 |
| Thygarayanagar South NDSO Pin Code | 600017 |
| Tidel Park SO Pin Code | 600113 |
| Tiruvallikkeni SO Pin Code | 600005 |
| Tiruvanmiyur SO Pin Code | 600041 |
| Tondiarpet Bazaar SO Pin Code | 600081 |
| Tondiarpet SO Pin Code | 600081 |
| Tondiarpet West SO Pin Code | 600081 |
| Triplicane South SO Pin Code | 600014 |
| TTTI Taramani SO Pin Code | 600113 |
| Vadapalani SO Pin Code | 600026 |
| Valmiki Nagar SO Pin Code | 600041 |
| Velacheri SO Pin Code | 600042 |
| Venkatesapuram SO Pin Code | 600012 |
| Vepery SO Pin Code | 600007 |
| Virugambakkam SO Pin Code | 600092 |
| Vivekananda College Madras SO Pin Code | 600004 |
| Vyasar Nagar Colony SO Pin Code | 600039 |
| Vyasarpadi SO Pin Code | 600039 |
| Washermanpet East SO Pin Code | 600021 |
| Washermanpet SO Pin Code | 600021 |
| West Mambalam SO Pin Code | 600033 |
| World University Centre SO Pin Code | 600031 |
