Jonesboro, AR: how dark is the sky here?
Satellite radiance puts Jonesboro in the inner-city band. Among the brightest skies in this dataset. Usually just the Moon and a few of the brightest stars or planets cut through. Only 99% of the 3,206 cities measured here read darker than Jonesboro.
This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely.
How far Jonesboro is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is Paragould, AR, roughly 19 miles away in a straight line, rated suburban. Road distance will be more.
Paragould, AR is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Jonesboro compares nationally
Jonesboro, AR counts roughly 82,384 residents, among the 3,206 US cities this site tracks. Jonesboro places 3,155 of 3,206 cities in this dataset's darkest-to-brightest order.