1.034 inhabitants (270 men, 459 women and 305 children) were examined in Racha region (North-western Georgia) on endemic goiter at the age from 1 to 75. The investigated population was selected by randomized method. Diagnostic criteria for the evaluation of the degree of endemic goiter were based on the data of palpation and ultrasonography. In children iodine excretion by urine was also determined. Obtained data were analyzed by means of computer program Epi info-6. Prevalence of endemic goiter in examined population was 62,4% (45,2% in men, 72,1% in women and 62,9% in children). The highest spreading of the endemic goiter is noticed in the 21-30 year age group among women (78,8%). The main form of endemic goiter in Racha region is euthyroid diffuse goiter (56,1%). High index of spreading of endemic goiter in Racha region is caused by iodine deficiency along with irrational feeding and genetic factors.