State Highway 151, also known as California State Route 151, is a short highway located in the state of California. It runs approximately 2.5 miles, connecting the city of Santa Maria to U.S. Route 101. The highway primarily serves local traffic and provides access to various neighborhoods and commercial areas. The route is situated in Santa Barbara County and is part of the larger network of state highways in California. It is designated as a two-lane road, facilitating travel for residents and visitors in the region. The highway plays a role in enhancing connectivity within the local transportation system.