According to a recent Pew study:
Nearly all Muslim Americans (97%) say they take pride in being a member of the Islamic faith, but their devotion to core religious beliefs and practices is only part of a religious identity that also includes concerns about social justice and the environment. The vast majority of U.S. Muslims say belief in God is essential (85%) to their religious identity, and an additional 10% say belief in God is “important but not essential.” For many, being Muslim also is tied to love for the Prophet Muhammad (72% say this is essential to what being Muslim means to them).
In addition to these core religious beliefs, 69% of U.S. Muslims also put a premium on working for justice and equality in society, and 62% consider it essential to safeguard the environment. The importance of the environment is even more prominent among those who say religion is very important in their lives; 68% of this group say protecting the environment is essential to their Muslim identity, compared with only half (51%) of those who say religion is less important to them.