B'nai Israel of Rossmoor is a synagogue serving the spiritual, social, and educational needs of active Jewish senior residents of Rossmoor in Walnut Creek, California. For more than 40 years, the congregation has grown to over 500 congregants and is described as one of the largest organizations in Rossmoor. The synagogue is supported by a strong volunteer community and clergy leadership, and holds Shabbat and High Holiday services.