|• Body||Town Panchayat|
|Elevation||61 m (200 ft)|
|Time zone||IST (UTC+5:30)|
|Vehicle registration||TN 76|
|Nearest city||Palayamkottai, Ambasamudram|
|Sex ratio||1:1 ♂/♀|
|Lok Sabha constituency||Tirunelveli|
|Vidhan Sabha constituency||Ambasamudram|
As of 2011[update] India census, Pathamadai had a population of 14,965. Males constitute 49% of the population and females 51%. Pathamadai has an average literacy rate of 72%, higher than the national average of 59.5%: male literacy is 80%, and female literacy is 66%. In Pathamadai, 11% of the population is under age 6.
Mats of Pathamadai
Pathamadai has a mat industry which produces mats crafted out of korai grass (Reed plant) also called as Indian Chattai. They are flexible and have been gifted to leaders like Nikolai Bulganin and Nikita Khrushchev.