Berwick, PA: how dark is the sky here?
Satellite radiance puts Berwick 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 23.5% of the 3,206 cities measured here read darker than Berwick.
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 Berwick is from a meaningfully darker sky
Hopatcong, NJ, about 83 miles away as the crow flies, measures in the rural band, one step darker than Berwick. Actual driving distance will run longer than that straight-line figure.
Hopatcong, 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 Berwick compares nationally
Berwick, PA counts roughly 10,332 residents, among the 3,206 US cities this site tracks. Berwick places 750 of 3,206 cities in this dataset's darkest-to-brightest order.