How dark is the sky in Westminster, CO?

Satellite radiance puts Westminster in the suburban edge band. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 36.4% of the 3,206 cities measured here read darker than Westminster.

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 Westminster is from a meaningfully darker sky

Arvada, CO, about 6 miles away as the crow flies, measures in the rural band, one step darker than Westminster. Actual driving distance will run longer than that straight-line figure.

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

Westminster against the rest of the dataset

Westminster, CO has a population of about 115,302, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Westminster ranks 1,162 from darkest to brightest, 1 being the darkest measured.