Pierre, SD: how dark is the sky here?

Pierre's sky measures suburban edge here. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Pierre's sky is brighter than 36.9% 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.

The nearest darker sky to Pierre

Box Elder, SD, about 138 miles away as the crow flies, measures in the rural band, one step darker than Pierre. Actual driving distance will run longer than that straight-line figure.

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

How Pierre compares nationally

Pierre, SD has a population of about 13,788, one of 3,206 US cities of 10,000 or more residents in this dataset. Pierre places 1,178 of 3,206 cities in this dataset's darkest-to-brightest order.