Streamwood, IL Night Sky Brightness
Streamwood, IL's night sky, measured from orbit
Streamwood'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. That's brighter than 40.2% 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.
The nearest darker sky to Streamwood
4 miles from Streamwood, straight-line, sits Bartlett, IL, the nearest city here with a darker sky than Streamwood's own suburban edge band.
Bartlett, IL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Streamwood compares nationally
Streamwood, IL counts roughly 38,360 residents, among the 3,206 US cities this site tracks. Streamwood's position, 1,281 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.