Since 2010, over 230 anti-Muslim bills have been introduced or enacted in US state legislatures by elected officials. These bills serve to institutionalize the othering of Muslims in the United States, to strengthen an unfounded fear of Islam and Muslims, and to foment a climate of intolerance toward Muslims and those perceived to be Muslim. Dangerously, efforts to enact anti-Sharia legislation undermine the civil and constitutional rights of Muslims, and the US Constitution itself. The map identifies and tracks all anti-Muslim legislation introduced in the US at the state level, as well as provides insight into the divisiveness of the bills, and the role state lawmakers have in institutionalizing Islamophobia. The map and research findings are updated annually at the beginning of each year.