Diarrhea illness is very common worldwide and estimated to account for million childhood death annually, predominantly in developing countries (WHO, 2005) conservative estimates place the global death toll from Diarrhea diseases at about two million death per year(1.7-2.5million death), ranking third among all cases of infectious diseases death world-wide. Diarrhea is a common and preventable diseases, but unfortunately in India like other developing countries of the world. In addition, examination of water practices, environmental investigation, knowledge attitude and practice. As majority of the affected population were illiterates/ less educated/aware, they also had poor awareness regarding personal hygiene. Public health interventions to prevent disease outbreak should focus on sanitation measures for safe water supply, food hygiene, proper sewage system/ disposal of excreta, public health education. PearsonCo-relation technique was used to be explain association between diarrhea and individual house hold latrine, water, sanitation and various socio-economic and demographic characteristic of South Bihar households.