It is part of the Marakkanam block of the Viluppuram district and is located 16 kilometres from Pondicherry and 130 km (81 mi) from Chennai.
It has a population of approximately 5000 people, of whom 50% are Muslims and the remaining 50% predominantly non Muslims.Koonimedu is also known as chinna Kuwait because of their occupational route.
Apart from Kuwait, some other countries where Koonimedu NRIs living is Singapore, Malaysia, UAE, Oman, Qatar, France and Saudi Arabia.
It is said that, Muslim population spread here during period King Arcod Nawab, for his soldiers passing way to Pondicherry old French colony.
Koonimedu phones and mobiles can be accessed by adding the Indian country dialing code +91 from abroad.
The nearest railway station to Koonimedu is Puducherry which is located in and around 22.9 kilometres' distance.