Newcastle, OK's night sky, measured from orbit
Satellite radiance puts Newcastle 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. Only 16.3% of the 3,206 cities measured here read darker than Newcastle.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.
The nearest darker sky to Newcastle
The closest place in this dataset with a meaningfully darker sky is Norman, OK, roughly 14 miles away in a straight line, rated rural. Road distance will be more.
Norman, OK is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Newcastle compares nationally
Newcastle, OK counts roughly 14,677 residents, among the 3,206 US cities this site tracks. Newcastle places 522 of 3,206 cities in this dataset's darkest-to-brightest order.