How dark is the sky in Fairview Heights, IL?

Fairview Heights'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. That's brighter than 41% 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.

How far Fairview Heights is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is Glen Carbon, IL, roughly 11 miles away in a straight line, rated rural. Road distance will be more.

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

Fairview Heights against the rest of the dataset

Fairview Heights, IL counts roughly 16,115 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Fairview Heights ranks 1,309 from darkest to brightest, 1 being the darkest measured.