Siocon is a coastal municipality in the province of Zamboanga del Norte.

The municipality has a land area of 503.20 square kilometers or 194.29 square miles which constitutes 6.89% of Zamboanga del Norte’s total area. Its population as determined by the 2020 Census was 48,524. This represented 4.63% of the total population of Zamboanga del Norte province, or 1.25% of the overall population of the Zamboanga Peninsula region. Based on these figures, the population density is computed at 96 inhabitants per square kilometer or 250 inhabitants per square mile.