Joliet, IL's night sky, measured from orbit

Joliet's sky measures urban here. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. That's brighter than 92% 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.

The nearest darker sky to Joliet

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

Shorewood, 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 Joliet compares nationally

About 151,837 people live in Joliet, IL, sized enough to appear in this dataset of 3,206 incorporated US cities. Joliet places 2,933 of 3,206 cities in this dataset's darkest-to-brightest order.