Formation of the municipality Republic Act No. 9265 was signed by then-President
Gloria Macapagal Arroyo on March 15, 2004. A plebiscite was administered and approved by the electorate of
Asuncion and
Kapalong on June 26, 2004. Under the name
San Isidro, the newly chartered municipality absorbed six barangays from the municipality of Asuncion, namely: Sawata, Sabangan, Mamangan, Santo Niño, Igangon, and Kipalili; and seven barangays from the municipality of Kapalong, namely: Dacudao, Datu Balong, Libuton, Pinamuno, Monte Dujali, Linao, and San Miguel.
Renaming of the municipality Davao del Norte 1st district representative and former House speaker
Pantaleon Alvarez filed House Bill No. 9452, renaming the municipality to
Sawata. It passed on third and final reading by the
House on August 3, 2021, and on the
Senate on January 31, 2022. On June 2, 2022, Republic Act No. 11814, the act renaming San Isidro as
Sawata, as well as its municipal proper, Barangay Sawata as
Poblacion, lapsed into law without the then outgoing President
Rodrigo Duterte's signature. On March 4, 2026, the
Commission on Elections (COMELEC) issued Resolution No. 11202, setting the
plebiscite on April 11, 2026. The plebiscite was successfully administered on April 11, 2026, despite a low turnout of close to 40% of the registered electorate of the municipality. Later, on that day, the COMELEC announced the ratification of these proposals by majority of participated voters. ==Geography==