Generally, Iodine Deficiency Discorders (IDD) is prevalent among people who live in mountain areas with low iodine content in the soil, drinkin-water and the foods-stuff. Recently, based on several studies, it is reported that the IDD cases are also found among people who live along coastal areas. No one report has explained the possible cause explicitly. The objective of this study is to analyze the iodine content of foods-stuff consumed in endemic and nonendemic coastal areas to explore the possible factors influencing IDD in villages along coastal areas. The study was conducted from April to August 1998 in the coastal area of Belimbing Village, Paciran sub district (as endemic coastal area) and Labuhan Village, Brondong sub district (as nonendemic coastal area), Lamongan Regency, East Java Province. The two villages are located along Java Sea. For this purpose 30 school children were selected as samples from each village ("Sekolah Dasar Belimbing I" and "Sekolah Dasar Labuhan 117". The food consumption data were collected by using food frequency questionnaire and the iodine content in foods-stuffs were measured quantitatively in laboratory. The result of this study shows that the iodine content in most of the foods-stuff in Belimbing Village is lower than Labuhan Village. The difference is around 2.5- 4.5 microgram/100g for sea production, and around 0.025-0.59 microgram/100g for vegetables and fruits.