You have got to check out Folsom!!
We moved here a few years go from the North Natomas area of Sacramento. I have a nine year old, and the schools here in Folsom are amazing, and besides the lake, there are tons of trails and bike paths (SO many people ride bikes here!).
There’s also Folsom Lake Community College, which houses the Harris Center for the Arts, a very active Historic District that has farmers markets, an ice rink in the winter, craft fairs, etc.
PLUS, Folsom’s location is great for all sorts of day trips: gold mining towns like Coloma and Nevada City are within an hour’s drive, Lake Tahoe is only 2 hours away, ski resorts about 1.5 hours away, and a visit to San Francisco would take you about 2 hours to get there.