State Route 305 (SR 305) is a short state highway located in California. It runs approximately 2.5 miles, connecting State Route 99 to State Route 140 in the city of Merced. The route primarily serves local traffic and provides access to various neighborhoods and commercial areas. Established in the 1960s, SR 305 is an important connector within the region. It features a mix of residential and commercial developments along its length, making it a vital roadway for residents and visitors alike. The highway is maintained by the California Department of Transportation (Caltrans).