Allikulam is a village located at Thoothukkudi Taluk, Thoothukkudi District, Tamil Nadu. Prominent places of this village are Allikulam Lake, Muthumariamman Temple, Sappani Madan Temple, Perumal Temple and Selva Vinayagar Temple.


Allikulam is located at 8.761870, 78.028151 or 8°45'42.7"N 78°01'41.3"E. Kovilpatti is about 56.4 km North West of Allikulam when taking the Kovilpatti – Ottapidaram – Pudukottai – Eral – Mukkani Road and 74.7 km when taking the NH 45B. Tirunelveli is about 36 km South West of Allikulam when taking the NH 7A. Madurai is about 155 km North of Allikulam when taking the NH 45B and 196 km when taking the NH 7. Perurani, Kuttudankadu, Pudukottai, Jameen Nallamalai and Sendilampannai are the towns/villages near here.


As per the 2011 census population of Allikulam was about 1,468. The present population of Allikulam is about 1,490. Out of which Male and female population were 737 and 731 respectively. Children aged between 0 – 6 are about 169. Female Sex Ratio here is 992Females for 1000 males. Average literacy rate of the state is 80.09% and this place is 88.84%. Male and Female literacy rate stands at 93.16% and 84.60% respectively. Total stretch of this village is 6.36 Sq. Km and it constitutes about 371houses. People in this village are doing business, service, labour and cultivators. About 58.84% of the people are employed in main work and the remaining are in Marginal work.


Tuticorin Railway Station and Tattaparai Railway Station are the railway stations found near Allikulam. Tuticorin Railway Station is about 18.8 km via Palayamkottai Road and NH 7A and 22.1 km via Thoothukkudi – Tiruchendur – Kanyakumari Road and NH 7A. Tattaparai Railway Station is about 11.5 km via Perurani Road. Madurai International Airport and Trivandrum International Airport are the nearest International Airports found near Allikulam. Trivandrum International Airport is about 186 km via Salem – Kochi – Kanyakumari Highway and NH7 and 207 km via Thiruvananthapuram – Thenmala Road. Madurai International Airport is about 147 km via NH 45B and 143 km via NH 45B and Kovilpatti – Ottapidaram – Pudukottai – Eral – Mukkani Road.