In the present study the iodine status of 300 adolescent boys and girls was assessed by clinical examination and biochemical tests. The clinical examination revealed the total goitre rate (TGR) to be 65.2% among boys, and 69.6% among girls. The visible goitre rate (VGR) was 17.7% among boys and 21.1% among girls. Nutritional status of all adolescents was found to be poor as compared to their well-nourished counterparts. Using discriminant analysis it was found that age, height and weight of the adolescents were significantly related to goitre grade (p < 0.001), and they are important in prediction of goitre. Mild and moderate iodine deficiency were found to be prevalent among the adolescents. On the basis of urinary iodine/creatinine ratio, 38% of the adolescents were found to be suffering from mild iodine deficiency, i.e. average urinary iodine excretion between 50-100 mcg iodine/g creatinine. Moderate iodine deficiency (< 50 mcg iodine/g creatinine) was found to be prevalent among 12.4% of the adolescents. The results of this study indicate a high prevalence of mild and moderate IDD among the adolescents studied.