The Big Bear Lake animal shelter and services are provided by San Bernardino County. The shelter offers animal control and shelter services for all unincorporated areas of San Bernardino County, excluding the West End unincorporated communities (West of I-15, south of Mt. Baldy). Additionally, they extend services to the cities of Highland, and Yucaipa.
If you live outside of those service areas, please check their list of other animal control agencies that provide service in the County.