How dark is the sky in Troy, IL?

Troy'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. Only 17.5% of the 3,206 cities measured here read darker than Troy.

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.

Where to go for a darker sky near Troy

Glen Carbon, IL, about 5 miles away as the crow flies, measures in the rural band, one step darker than Troy. Actual driving distance will run longer than that straight-line figure.

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.

Troy against the rest of the dataset

Troy, IL counts roughly 11,810 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Troy ranks 560 from darkest to brightest, 1 being the darkest measured.