Red Bank, NJ: how dark is the sky here?
Red Bank reads as urban on this dataset's scale. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. That's brighter than 85.7% of the 3,206 US cities in this dataset.
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 Red Bank is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is Eatontown, NJ, roughly 4 miles away in a straight line, rated suburban. Road distance will be more.
Eatontown, NJ 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, NJ counts roughly 12,830 residents, among the 3,206 US cities this site tracks. Red Bank places 2,732 of 3,206 cities in this dataset's darkest-to-brightest order.