Watertown, SD: how dark is the sky here?

Satellite radiance puts Watertown 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 7% 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.

How far Watertown is from a meaningfully darker sky

Victoria, MN, about 171 miles away as the crow flies, measures in the dark sky band, one step darker than Watertown. Actual driving distance will run longer than that straight-line figure.

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

How Watertown compares nationally

Watertown, SD counts roughly 23,492 residents, among the 3,206 US cities this site tracks. Watertown places 225 of 3,206 cities in this dataset's darkest-to-brightest order.