Lituban - from the sitios of Lituban, Pangian, Quibanbanan and Tabayo;
Tibangao - from the sitios of Tibangao, Daanlawas, Mangcabing, Cuab and Matiag;
Balagunan - from the sitios of Baliguian, Mamad and Balagunan Grande; and
Malipot - from the sitios of Malipot, Siay, Kanibungan, Baliangan and Pisawak.
In May 2003, the municipality was attacked by 150 Moro Islamic Liberation Front (MILF) and Abu Sayyaf guerrillas.[6] The attack commenced at 12 a.m. on May 4. A small group of policemen led by 27-year-old police senior inspector Ranie Planilla Hachuela defended Siocon during the assault, which lasted nine hours. Hachuela managed to rally his men in putting up stiff resistance against the wave of attacks by the rebels trying to overrun the municipal hall, police station, and hospital. For this reason he was awarded the Medal of Valor for risking his life and for rescuing the town mayor and his family.
The rebels created an intricate plan of securing the entry and exit points of the Poblacion (town center). Responding government troops were ambushed as they tried to aid the outnumbered policemen.
That frightening feeling was expressed by Wiljun "Pido" Cubero as he narrated how the rebels stormed the municipal hall and fire station right next to their house at Micubo's compound.
Thirteen of the 150 rebels were killed, including Jairullah Hassan (aka Commander Hairon of the MILF) who headed the attack.
Eleven government troops and 25 civilians also lost their lives in the assault, including two seminarians.[7] The public market was burned down, while civilians were taken out of their homes to be used as human shields as rebels withdrew. Some hostages were released hours later, while other strong men were held for days as they were tasked to carry wounded rebels through the thick forest in the municipality of Sibuco.
The day after the attack, MILF spokesman Eid Kabalu expressed that it was a show of force by the MILF and Abu Sayyaf within the area.
Geography
Barangays
Siocon is politically subdivided into 26 barangays. Each barangay consists of puroks while some have sitios.
Most of its 26 barangays have their respective public elementary schools and only few have public secondary schools. In the town proper has its elementary and secondary public schools and a state university.[21]
Elementary
Siocon CS
Balagonan ES
Bliss ES
Bucana ES
Bulacan ES
Candiz ES
Canatuan ES
Cuyan ES
C. Callao ES
Pedro Torio ES
Lituban ES
Malipot ES
Ma. Ybarsabal ES
Makiang ES
Malambuhangin ES
Matiag ES
Pisawak ES
Siay Integrated School
Sta. Maria ES
S. Cabral ES
Tibangao ES
Latabon ES
Mambong ES
JP Brillantes ES
Lu Tian Po ES
Tabayo ES
Tibangao ES
Panubigan PS
Paduan ES
Jolito Camatura ES
Imam Nasaron Haron PS
Kono Mais ES
Secondary
Siocon National Science High School
Santa Maria National High School
Canatuan National High School
Siay Integrated School
Makiang National High School
Julian Soriano Memorial Comprehensive High School (formerly known as Siocon National Vocational School)