Vadakkunallur is a village in Ponneri tehsil in district of Thiruvallur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Vadakkunallur was 823 which includes 385 males and 438 females. Vadakkunallur covers 161.53 ha area. Pincode of Vadakkunallur is 601206.