How dark is the sky in Greenville, MS?
Satellite radiance puts Greenville in the suburban edge band. 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 38% of the 3,206 US cities in this dataset.
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 Greenville
Clinton, MS, about 82 miles away as the crow flies, measures in the rural band, one step darker than Greenville. Actual driving distance will run longer than that straight-line figure.
Clinton, MS is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Greenville against the rest of the dataset
Greenville, MS counts roughly 27,015 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Greenville ranks 1,212 from darkest to brightest, 1 being the darkest measured.