How dark is the sky in Northport, AL?
Satellite radiance puts Northport in the rural band. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. That's brighter than 10.2% 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.
The nearest darker sky to Northport
The closest place in this dataset with a meaningfully darker sky is Hueytown, AL, roughly 35 miles away in a straight line, rated dark sky. Road distance will be more.
Hueytown, AL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Northport against the rest of the dataset
Northport, AL has a population of about 31,492, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Northport ranks 326 from darkest to brightest, 1 being the darkest measured.