Stirling City is an unincorporated community and census-designated place in Butte County, California, located on Paradise Ridge in the western foothills of the Sierra Nevada. Contrary to its name, Stirling City is not a city. Its ZIP Code is 95978 and area code 530. It lies at an elevation of 3570 feet (1088 m). Stirling City had a population of 295 at the 2010 census.
Stirling City is located at 39°54′28″N 121°31′41″W / 39.90778°N 121.52806°W / 39.90778; -121.52806, around 45 miles (32 km) northeast of Chico, California. It is built around a loop (which terminates a winding spur line) of the Southern Pacific Railroad, built to collect lumber from the Lassen National Forest.