Tilmubo/Tilmobo Island (Cebuano: Pulo sa Tilmubo; Filipino: Pulo ng Tilmubo) is an islet and barangay located in the President Carlos P. Garcia municipality, in the province of Bohol, Philippines. It is situated in the Canigao Channel within the Bohol Sea. (also referred to as the Mindanao Sea) According to the 2020 census, it has a population of 221 people.
Before the colonial era of the Philippines, Tilmubo Island was inhabited by Austronesian groups. Those groups were organized into barangays led by local chiefs. Extensive maritime trade networks and animistic beliefs were practiced by the early inhabitants.
For most of the 20th century, Tilmubo Island was under the administrative jurisdiction of the municipality of Ubay. The island was incorporated into the newly established municipality of Pitogo on June 21, 1969 through Republic Act No. 5864. The municipality was later renamed President Carlos P. Garcia in 1977 to honor the eighth president of the Philippines.
Tilmubo Island is a small islet situated in the Central Visayas. It is located in the Canigao Channel. To the south, the Bohol Sea borders the island. Tilmubo Island is part of the municipality of President Carlos P. Garcia.
The island's land area is approximately 0.24 square kilometers, and features terrain consisting primarily of coralline limestone. The maximum elevation of Tilmubo Island reaches 79 meters (259 feet) above sea level. Clear tropical waters, coral reefs, and seagrass beds characterize the coast line.
The climate of Tilmubo Island is tropical maritime. Throughout the year, there is rainfall distribution, and high humidity levels.
Tilmobo Elementary School (DepEd School ID: 118605) is the sole educational facility on Tilmubo Island. The institution is under the jurisdiction of the Department of Education Schools Division of Bohol. Primary education is provided by the school for the residents of the island. Since secondary education is not provided on the island, students must travel to the mainland of the municipality of President Carlos P. Garcia to attend other schools.