What the night sky looks like over Carol Stream, IL
Carol Stream'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 35.7% of the 3,206 US cities in this dataset.
The number comes from orbit, not a stargazer's logbook, so treat it as an estimate of sky glow rather than a certified Bortle class.
Where to go for a darker sky near Carol Stream
The closest place in this dataset with a meaningfully darker sky is Bartlett, IL, roughly 4 miles away in a straight line, rated rural. Road distance will be more.
Bartlett, IL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Carol Stream against the rest of the dataset
Carol Stream, IL has a population of about 39,556, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Carol Stream ranks 1,140 from darkest to brightest, 1 being the darkest measured.