Background: Dental caries remains public health problem worldwide. It may develop in an early stage of life as soon as teeth erupt. Dental caries exhibits diminishing trends in most of the developed countries, but still increasing trends seen in many developing countries. Aim: To assess the prevalence of dental caries in 11-14years old school children in endemic fluoride areas of Haryana, India. Materials and methods: This study was a part of a cross sectional descriptive study which was conducted among 2200 school children of 11-14 years old age in endemic fluoride areas of Haryana, India. After obtaining the data from central ground water board, Haryana, 3 districts were selected using cluster random sampling out of 14 endemic fluoride districts. Dental examination was carried out by a single trained investigator. Socio-demographic details of children were recorded and WHO basic oral health assessment criteria for children modified (2013) was used for assessment of dental caries. The data were entered in Microsoft Excel and analyzed using SPSS 18 package for relevant statistical comparison. Results: In the present study 997 (45.3%) were males and 54.7% were females. Caries prevalence was reported to be 19% among the study subjects. Mean DMFT was found to be (0.27±0.70). Conclusion: The present study revealed that the prevalence of dental caries and DMFT was low among children. The reason behind this may be due to high concentration of fluoride in drinking water in those areas.