About This Place
Monte Rio is a census-designated place (CDP) in Sonoma County, California along the Russian River near the Pacific Ocean. The town of Guerneville lies east of Monte Rio, and Jenner is slightly north-west. The population was 1,152 at the 2010 census, up from 1,104 at the 2000 census. Bohemian Grove is located in Monte Rio.
Monte Rio is located at 38°28′13″N 123°0′50″W / 38.47028°N 123.01389°W / 38.47028; -123.01389 (38.470406, -123.013753).
According to the United States Census Bureau, the CDP has a total area of 2.0 square miles (5.1 km²). 1.9 square miles (4.9 km²) of it is land and 0.07 square miles (0.2 km²) of it (3.68%) is water.