Grayslake, IL's night sky, measured from orbit

Grayslake'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 59.1% of the 3,206 US cities in this dataset.

Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.

How far Grayslake is from a meaningfully darker sky

Round Lake, IL, about 4 miles away as the crow flies, measures in the rural band, one step darker than Grayslake. 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.

How Grayslake compares nationally

About 21,262 people live in Grayslake, IL, sized enough to appear in this dataset of 3,206 incorporated US cities. Grayslake places 1,884 of 3,206 cities in this dataset's darkest-to-brightest order.