Oregon, WI: how dark is the sky here?
Oregon 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. Oregon's sky is brighter than 17.4% 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.
Where to go for a darker sky near Oregon
5 miles from Oregon, straight-line, sits Fitchburg, WI, the nearest city here with a darker sky than Oregon's own suburban edge band.
Fitchburg, WI is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Oregon compares nationally
Oregon, WI counts roughly 11,895 residents, among the 3,206 US cities this site tracks. Oregon places 557 of 3,206 cities in this dataset's darkest-to-brightest order.