Katajhar Gaon is a village in Barnagar tehsil in district of Baksa, Assam, India. As per the data provided by Census of India in 2011, total population of Katajhar Gaon was 2,687 which includes 1,380 males and 1,307 females. Katajhar Gaon covers 310.48 ha area. Pincode of Katajhar Gaon is 781315.