The nickname of Turlock, California is “Heart of the Valley” was introduced. In earlier years Turlock was listed in the Guinness Book of World Records as having the most churches per-capita in the United States, partly attributable to a wide variety of ethnic churches having been established for a relatively small settler population. Various religious centers reflecting a diverse population such as Sikh Gurdwaras, various Christian Assyrian churches, and many mainline Protestant and Catholic churches have been built.