How dark is the sky in Rohnert Park, CA?

Rohnert Park's sky measures suburban edge here. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 38.7% of the 3,206 cities measured here read darker than Rohnert Park.

Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute.

How far Rohnert Park is from a meaningfully darker sky

San Anselmo, CA, about 26 miles away as the crow flies, measures in the rural band, one step darker than Rohnert Park. Actual driving distance will run longer than that straight-line figure.

San Anselmo, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

Rohnert Park against the rest of the dataset

About 44,894 people live in Rohnert Park, CA, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, Rohnert Park ranks 1,234 from darkest to brightest, 1 being the darkest measured.