The Somalians ARE Muslim: I asked Grok: The predominant religion of the Somali community in the USA is Sunni Islam. Somali Americans, who primarily trace their origins to Somalia (where over 99% of the population is Sunni Muslim), overwhelmingly maintain this faith in the diaspora. Reliable sources consistently describe the community as predominantly Sunni Muslim:

Wikipedia's entry on Somali Americans explicitly states: "Religion: Predominantly Sunni Islam." Reports on major Somali hubs like Minnesota (home to the largest U.S. Somali population, around 80,000–100,000+) describe Somalis as "predominantly Sunni Muslim," forming one of the state's largest Muslim communities. Health and cultural profiles (e.g., from state departments and organisations) note that most Somalis practice Islam, with the majority being Sunni Muslims, observing practices like halal dietary rules and prayer. Even subgroups like Somali Bantu in the U.S. are described as almost entirely Sunni Muslim (e.g., 99.95% in some estimates). Broader context from the Somali homeland and diaspora reinforces this, with very few exceptions (e.g., tiny numbers of converts to other faiths, but these are rare and often face significant social barriers).

While some younger Somali Americans may be more secular or less observant (as noted in discussions about mosque attendance or cultural shifts), the predominant and overwhelming affiliation remains Sunni Islam. No credible demographic data suggests any other religion is prevalent in the community.