Koogaiyur is a village in Kallakkurichi tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Koogaiyur was 3,901 which includes 1,974 males and 1,927 females. Koogaiyur covers 1171.99 ha area. Pincode of Koogaiyur is 606301.