Glenn County is one of California's 58 counties. Glenn County was organized in 1891 from part of Colusa County. According to the U.S. Census Bureau, the county has a total area of 1,327 square miles (3,437 km²), of which, 1,315 square miles (3,405 km²) of it is land and 12 square miles (32 km²) of it (0.93%) is water. It was named for Dr. Hugh J. Glenn, who was the largest wheat farmer in the state during his lifetime, and a man of great prominence in political and commercial life in California

As of 2000, the county had a population of 26,453. The county seat is the city of Willows.

The County of Glenn is known mostly as a agricultural community, with the vast number of its residents involved in either agriculture, community work or commuting to nearby locations such as Chico. It is currently the poorest county in California and also contains one of the lowest populations by county in the state.

Cities and towns

Adjacent counties