Chaska, MN Night Sky Brightness
Chaska, MN's night sky, measured from orbit
Chaska reads as suburban edge on this dataset's scale. 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 20.2% of the 3,206 US cities in this dataset.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things, explained in the Bortle scale guide.
How far Chaska is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is Victoria, MN, roughly 5 miles away in a straight line, rated dark sky. Road distance will be more.
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 Chaska compares nationally
Chaska, MN counts roughly 30,167 residents, among the 3,206 US cities this site tracks. Chaska's position, 644 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.