In a climate of increased suspicion and skepticism towards Islam and Muslims, polling data collected over the years reveals how Americans have come to view their country’s third-largest religious group. This Super Survey, which compiles and analyzes polling questions collected by over a dozen polling organizations from 1993 to 2014, finds that Americans remain unfamiliar with Islam; feel more coldly towards Muslims than any other religious group; and tend to see Islam as “more violent” than other religions during national debates about military action in the Middle East. Additionally, while they have been supportive of mosques in their communities, a sizeable portion has favored various measures of religious profiling. In the twenty-first century, on average, six in 10 Americans has reported that they don’t know a Muslim personally. And while a plurality of Americans has reported having favorable views of Muslims since 2000, unfavorable views have persisted, with relatively little fluctuation over time.