Introduction and Objective Iodine is an essential micronutrient. A daily consumption of 100–150 μg of Iodine is recommended for normal human growth and development. Iodine Deficiency Disorders (IDD) can be easily prevented. Simplest, most effective and most inexpensive preventive method is consumption of iodated salt. In this study, we estimated the prevalence of IDD among children in the rural areas of Mysore and Coorg districts, and the results were compared.

Materials and Methods A cross sectional study in the age group of 6–12 years using PPS systematic sampling method. The total sample size being 10 082 out of which 5337 is from Mysore and the rest from Coorg district. Clinical examination of the thyroid was done and urine samples were collected for Iodine estimation. Data were analysed using SAS software.

Results and Conclusion Prevalence of Goitre was more in females compared to males with a ratio of 2:1 in Mysore districts and 4:1 in Coorg district. It was observed that IDD is Endemic in both districts and the presence of goitre is directly proportional to the age of children. The significant difference in the level of Goitre in children across districts and within districts is being studied.