Introduction: The study was on the angular deformities among school children and adolescents in Asaba Nigeria. It also studied the relationship between body mass index (BMI) and angular knee deformity. The prevalence of angular deformity was determined from the data analyzed. Methods: The research was conducted in kindergarten, primary and post–primary schools in Asaba Nigeria. Clinical measurements of tibiofemoral angles (TFA) or knee angles, weights, heights of children and adolescents 3–17 years were taken. 1775 subjects were assessed. The data was analyzed. Results: The normal values of TFA in the studied population were in the range of 5.46˚ of varus to 5.14˚ of valgus. Angular deformity was 4.5%. It did not correlate with BMI. Conclusion: The prevalence of angular knee deformity in school children and adolescents in Asaba Nigeria is 4.5%.