DarkSkyCheck

Jefferson Hills, PA: how dark is the sky here?

Satellite radiance puts Jefferson Hills in the rural band. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. That's brighter than 9.9% 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.

The nearest darker sky to Jefferson Hills

109 miles from Jefferson Hills, straight-line, sits St. Marys, PA, the nearest city here with a darker sky than Jefferson Hills's own rural band.

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 Jefferson Hills compares nationally

About 12,291 people live in Jefferson Hills, PA, sized enough to appear in this dataset of 3,206 incorporated US cities. Jefferson Hills places 320 of 3,206 cities in this dataset's darkest-to-brightest order.