How dark is the sky in Round Lake Beach, IL?

Round Lake Beach 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 40% of the 3,206 cities measured here read darker than Round Lake Beach.

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 Round Lake Beach

Round Lake, IL, about 3 miles away as the crow flies, measures in the rural band, one step darker than Round Lake Beach. Actual driving distance will run longer than that straight-line figure.

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

Round Lake Beach against the rest of the dataset

Round Lake Beach, IL has a population of about 27,091, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Round Lake Beach ranks 1,277 from darkest to brightest, 1 being the darkest measured.