According to the U.S. Census Bureau, the Barstow CDP has an area of 0.56 square miles (1.45 km2), all of it land.[3]
Cougar attack
In 1999, a four-year-old boy was injured in a cougar attack. The boy survived the ambush despite suffering a serious neck wound and the cougar was found and put down. The event occurred a mile south of Barstow and was the ninth recorded attack by a cougar in Washington state history up to that time.[4]