Roseville is just a mere 15 miles away from Downtown Sacramento and just recently celebrated the Placer County Strawberry Festival in Roseville. I have included a link to Roseville so that you can become familiar the houses, subdivisions and Adult Communities in Roseville.
Roseville borders on the Sacramento County line. We are in effect "next door". For city center to city center The quoted mileage and drive time is correct in very light traffic, it can double or more in heavy traffic or bad weather.
Roseville is about a 15-20 minute drive to downtown Sac. Ive attached the city's website. I have lived in the Roseville area for most of my life, being born here; and I can tell you that there are many advantages to living here over other suburban cities in the Sac metro area.