Las Vegas, NM's night sky, measured from orbit
Satellite radiance puts Las Vegas in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 56.8% 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.
The nearest darker sky to Las Vegas
The closest place in this dataset with a meaningfully darker sky is Española, NM, roughly 55 miles away in a straight line, rated suburban edge. Road distance will be more.
Española, NM is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Las Vegas compares nationally
About 12,711 people live in Las Vegas, NM, sized enough to appear in this dataset of 3,206 incorporated US cities. Las Vegas places 1,813 of 3,206 cities in this dataset's darkest-to-brightest order.