Thornton, CO: how dark is the sky here?

Thornton's sky measures suburban here. 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.

This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely.

Where to go for a darker sky near Thornton

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

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

How Thornton compares nationally

About 146,689 people live in Thornton, CO, sized enough to appear in this dataset of 3,206 incorporated US cities. Thornton places 1,841 of 3,206 cities in this dataset's darkest-to-brightest order.