There are no official statistics for the Bay Area’s Muslim population, and very little demographic data on the community. The U.S. Census does not ask about religious affiliation, which makes it difficult to determine the community’s exact size. Estimates have been derived by analyzing census data on the basis of immigration patterns from Muslim-majority countries17 and by examining patterns of American Muslim institutionalization (e.g., the number of mosques and congregation size).18 Finally, some estimates have been based on deriving population figures from national studies. National estimates of Muslims in the country range from 2 to 10 million.19 The Pew Research Center, which has conducted the most scientifically sound study, estimated that there were 2.75 million Muslim in the United States in 2011.
The authors of this report estimate the Bay Area’s Muslim population at approximately 250,000 individuals. The community, which constitutes one of the nation’s highest concentrations, comprises approximately 3.5 percent of the total Bay Area population.20 *Footnotes contained in the report.