Sundar Gaon is a village in Karnaprayag tehsil in district of Chamoli, Uttarakhand, India. As per the data provided by Census of India in 2011, total population of Sundar Gaon was 184 which includes 88 males and 96 females. Sundar Gaon covers 133.53 ha area. Pincode of Sundar Gaon is 246444.