Santhanagopalapuram is a village in Tiruttani tehsil in district of Thiruvallur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Santhanagopalapuram was 1,798 which includes 872 males and 926 females. Santhanagopalapuram covers 381.9 ha area. Pincode of Santhanagopalapuram is 631211.