How dark is the sky in North Liberty, IA?

North Liberty reads as suburban edge on this dataset's scale. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 27.1% of the 3,206 cities measured here read darker than North Liberty.

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 North Liberty is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is Clinton, IA, roughly 71 miles away in a straight line, rated rural. Road distance will be more.

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

North Liberty against the rest of the dataset

About 21,904 people live in North Liberty, IA, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, North Liberty ranks 866 from darkest to brightest, 1 being the darkest measured.