South Lyon, MI: how dark is the sky here?

Satellite radiance puts South Lyon 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. South Lyon's sky is brighter than 43.7% 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 South Lyon is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is Oregon, OH, roughly 57 miles away in a straight line, rated rural. Road distance will be more.

Oregon, OH 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 Lyon compares nationally

About 12,219 people live in South Lyon, MI, sized enough to appear in this dataset of 3,206 incorporated US cities. South Lyon places 1,394 of 3,206 cities in this dataset's darkest-to-brightest order.