Jatmasi is a village in Rupbas tehsil in district of Bharatpur, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Jatmasi was 2,295 which includes 1,241 males and 1,054 females. Jatmasi covers 556.23 ha area. Pincode of Jatmasi is 321403.