Kolaisai is a village in Noamundi tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Kolaisai was 877 which includes 432 males and 445 females. Kolaisai covers 1519.49 ha area. Pincode of Kolaisai is 833218.