The place of Crest Line is located in the county of San Bernardino. It covers a total area of 36.0 sq. km. Industries related to air conditioning, automotive, finance, beverages, apparel, pharmaceuticals, hotel, metal, oil and lubrication, real estate and sheet metal, enhance the financial viability of the place. Commercial spaces are utilized by campgrounds, resale shops, restaurants, road side services, youth centers, contribute to the local economy.