Tigard, OR's night sky, measured from orbit
Tigard reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 49.4% of the 3,206 cities measured here read darker than Tigard.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.
How far Tigard is from a meaningfully darker sky
4 miles from Tigard, straight-line, sits Beaverton, OR, the nearest city here with a darker sky than Tigard's own suburban band.
Beaverton, OR is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Tigard compares nationally
Tigard, OR has a population of about 57,301, one of 3,206 US cities of 10,000 or more residents in this dataset. Tigard places 1,574 of 3,206 cities in this dataset's darkest-to-brightest order.