Grass Valley is located in California. Grass Valley, California has a population of 12,726. Grass Valley is more family-centric than the surrounding county with 22% households with children. The county percentage for households with children is 21%.
The median household income in Grass Valley, California is $43,291. The median household income for the surrounding county is $70,622 compared to the national median of $66,222. The median age of people living in Grass Valley is 41.3 years.
The average high temperature in July is 86.6 degrees, with an average low temperature in January of 31.4 degrees. The annual precipitation is 53.07.