| Locality | Post Code |
|---|---|
| Tatarskie Chelny, Mendeleevsky district (Татарские Челны) | 423641 |
| Tatarskoe Tekashevo, Mendeleevsky district (Татарское Текашево) | 423627, 423650 |
| Tatarsky Akhtiyal, Mendeleevsky district (Татарский Ахтиял) | 423627, 423627, 423650 |
| Tatarsky Kokshan, Mendeleevsky district (Татарский Кокшан) | 423627, 423628, 423650 |
| Tatarsky Sarsaz, Mendeleevsky district (Татарский Сарсаз) | 423646 |
| Tikhonovo, Mendeleevsky district (Тихоново) | 423655 |
| Toyguzino, Mendeleevsky district (Тойгузино) | 423627, 423650 |
| Toyma, Mendeleevsky district (Тойма) | 423628, 423643, 423650 |
| Tukai, Mendeleevsky district (Тукай) | 423646, 423627 |
| Turaevo, Mendeleevsky district (Тураево) | 423627 |