How dark is the sky in Fullerton, CA?

Fullerton reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 57.7% of the 3,206 US cities in this dataset.

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.

The nearest darker sky to Fullerton

5 miles from Fullerton, straight-line, sits Brea, CA, the nearest city here with a darker sky than Fullerton's own suburban band.

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

Fullerton against the rest of the dataset

About 140,054 people live in Fullerton, CA, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, Fullerton ranks 1,840 from darkest to brightest, 1 being the darkest measured.