Koyalahwa is a village in Nanpara tehsil in district of Bahraich, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Koyalahwa was 1,314 which includes 708 males and 606 females. Koyalahwa covers 211.84 ha area. Pincode of Koyalahwa is N/A.