The majority of Jains marry other Jains, but Jains and Vaiṣṇavas frequently intermarry, for instance in western India. Within India, considerations of sect and caste come into play.
However, it is more common for Jains of the diaspora to marry into other sects and castes. This is mainly because Jain communities outside India are often small and sectarian differences are submerged in a broader Jain identity. A temple may be run for Śvetāmbara and Digambara Jains as well as for followers of the smaller sects, so people meet others outside their own sect much more easily.