Folsom, CA Night Sky Brightness
Folsom, CA's night sky, measured from orbit
Satellite radiance puts Folsom in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 72.8% of the 3,206 US cities in this dataset.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things, explained in the Bortle scale guide.
Where to go for a darker sky near Folsom
The closest place in this dataset with a meaningfully darker sky is Rancho Cordova, CA, roughly 8 miles away in a straight line, rated rural. Road distance will be more.
Rancho Cordova, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Folsom compares nationally
Folsom, CA counts roughly 88,091 residents, among the 3,206 US cities this site tracks. Folsom's position, 2,322 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.