St Helena is located in California. St Helena, California has a population of 5,752. St Helena is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 29%.
The median household income in St Helena, California is $88,439. The median household income for the surrounding county is $93,794 compared to the national median of $66,222. The median age of people living in St Helena is 42.7 years.
The average high temperature in July is 89.3 degrees, with an average low temperature in January of 37.8 degrees. The annual precipitation is 34.88.