Harrisburg, PA: how dark is the sky here?

Harrisburg's sky measures urban here. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Harrisburg's sky is brighter than 90.7% of the 3,206 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 Harrisburg is from a meaningfully darker sky

Mechanicsburg, PA, about 8 miles away as the crow flies, measures in the suburban band, one step darker than Harrisburg. Actual driving distance will run longer than that straight-line figure.

Mechanicsburg, 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 Harrisburg compares nationally

About 50,649 people live in Harrisburg, PA, sized enough to appear in this dataset of 3,206 incorporated US cities. Harrisburg places 2,893 of 3,206 cities in this dataset's darkest-to-brightest order.