There are 100 Outdoor Activities in Contra Costa County, California, serving a population of 1,123,678 people in an area of 723 square miles. There is 1 Outdoor Activity Venue per 11,236 people, and 1 Outdoor Activity Venue per 7 square miles.
In California, Contra Costa County is ranked 39th of 58 counties in Outdoor Activities per capita, and 7th of 58 counties in Outdoor Activities per square mile.