Red Bank, TN's night sky, measured from orbit
Satellite radiance puts Red Bank 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 25.8% 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.
How far Red Bank is from a meaningfully darker sky
Soddy-Daisy, TN, about 13 miles away as the crow flies, measures in the rural band, one step darker than Red Bank. Actual driving distance will run longer than that straight-line figure.
Soddy-Daisy, TN is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Red Bank compares nationally
Red Bank, TN has a population of about 12,073, one of 3,206 US cities of 10,000 or more residents in this dataset. Red Bank places 822 of 3,206 cities in this dataset's darkest-to-brightest order.