Karmawas is a village in Siwana tehsil in district of Barmer, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Karmawas was 5,297 which includes 2,730 males and 2,567 females. Karmawas covers 2215 ha area. Pincode of Karmawas is 344021.