Williamsport, PA: how dark is the sky here?

Williamsport reads as suburban edge on this dataset's scale. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 27.4% of the 3,206 cities measured here read darker than Williamsport.

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 Williamsport is from a meaningfully darker sky

St. Marys, PA, about 78 miles away as the crow flies, measures in the dark sky band, one step darker than Williamsport. Actual driving distance will run longer than that straight-line figure.

St. Marys, PA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

How Williamsport compares nationally

Williamsport, PA has a population of about 27,628, one of 3,206 US cities of 10,000 or more residents in this dataset. Williamsport places 874 of 3,206 cities in this dataset's darkest-to-brightest order.