See our new Maps page for an interactive visualization of the religious demography of the Middle East. Population estimates are updated to 2015. Here’s a preview:
Note these disclaimers: In order to highlight minority religions, the visualization risks exaggerating the size of minority populations relative to total population. In reality minority populations in most parts of the middle east are tiny in relation to total population, and they are shrinking. The map also does not reflect religious diversity among Muslims. We’ll be working on additional visualizations that will help to balance both of these concerns. Data source: Todd M. Johnson and Brian J. Grim, eds. , World Religion Database. Leiden/Boston: Brill, accessed January 2018.