Bien Unido, officially the Municipality of Bien Unido, is a 4th class municipality in the province of Bohol, Philippines. According to the 20…Bien Unido, officially the Municipality of Bien Unido, is a 4th class municipality in the province of Bohol, Philippines. According to the 2020 census, it has a population of 26,666 people. Bien Unido is the youngest municipality in Bohol being founded in 1981 after it was carved out and separated from the municipalities of Trinidad and Talibon. Among the principal industries in Bien Unido are rice farming, seaweed farming, livestock raising, algaculture, fishing, and mat weaving. The town gained the nickname as the de facto Seaweeds Capital of the Visayas.