Riau Islands is a province in Indonesia with its capital located in Tanjungpinang. Geographically, this province borders Vietnam and Cambodia to the north, Malaysia and West Kalimantan to the east, Bangka Belitung Islands and Jambi to the south, and Singapore, Malaysia, and Riau to the west. This archipelagic province has a population of approximately 2 million people with a density of 252 people/km². Demographically, the population of Riau Islands adheres to Islam (78.29%), Protestantism (11.97%), Catholicism (2.54%), Buddhism (6.99%), Confucianism (0.15%), Hinduism (0.05%), and others (0.01%).

The religious diversity of the population contributes to the Riau Islands' Religious Harmony Index of 75.4, which is categorized as high. In line with this finding, the Center for Detention Studies recorded 6 terrorism incidents and 3 terrorists in this province.

Update: June 24, 2024