Islam was the fastest growing religious group in San Diego County between 2000 and 2010, according to the recently released 2010 U.S. Religion Census.
During the decade, the county's Muslim population grew by 179 percent from 7,878 adherents to 21,994, according to estimates from the survey of the Association of Statisticians of American Religious Bodies. Islam is now the seventh-largest religion in the county, the survey found.
Only one other group grew more here, in overall numbers. The county's Mormon community grew by 25,227 followers, an increase of 55 percent, making it the third-largest church in the county.