Iodine deficiency disorder is a major public health problem in Himachal Pradesh. A study was conducted in district Kullu to assess the prevalence of IDD in school age children. Clinical examination of the thyroid of 1986 children was conducted. On the spot urine and salt samples were collected. The Total Goiter Rate was found to be 23.4% and median urinary iodine excretion was 175 ug/L. The population is possibly in transition phase from iodine deficient to iodine sufficient nutrition.