The practice of Buddhism in the United States arrived with various Asian immigrant groups, from Chinese to Japanese and, later, Koreans and Thais, Cambodians and the various Burmese ethnic groups. Current congregations, or sanghas, tend to be located on the Pacific Coast, including metropolitan Los Angeles and the San Francisco Bay area, and some major cities in the East, such as Boston and New York. While the major groups practicing Buddhism in the US are Asian in descent, increasing numbers of non-Asian people find themselves attracted to the philosophical aspects of the religion and to meditation styles of Vipassana, Zen, etc. Buddhism’s treatment of the concept of transience appeals to many people in the postmodern age. Many adherents find it useful as a means to grapple with the existential aspects of the times. Estimates of the number of adherents in the US range anywhere between 750,000 and 5 million people.