Barangay Carapdapan is located in western part of Salcedo, Eastern Samar. It is bounded on the North by Barangay Naparaan on the South by Leyte Gulf, on the East by Barangay Palanas and on the West by Barangay Camanga .It takes 20 minutes in going to this barangay from Salcedo proper. It is accessible by motorcycle and Jeepney.The barangay is divided into four zones: zone 1, 2, 3 and 4.
The barangay has a total land area of 290 square kilometers. It is categorized into agricultural including the alienable and disposable land, residential and mineral land. The terrain characteristic is coastal plain and some part is hilly. The types of soil in this barangay are clay loam (Banika) which is 65%, Clay is 25% and sandy is 10%.