South Portland, ME: how dark is the sky here?

Satellite radiance puts South Portland 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. That's brighter than 39.2% 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.

Where to go for a darker sky near South Portland

The closest place in this dataset with a meaningfully darker sky is Westbrook, ME, roughly 6 miles away in a straight line, rated dark sky. Road distance will be more.

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

How South Portland compares nationally

South Portland, ME counts roughly 26,994 residents, among the 3,206 US cities this site tracks. South Portland places 1,250 of 3,206 cities in this dataset's darkest-to-brightest order.