Upland, CA: how dark is the sky here?

Upland 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. Upland's sky is brighter than 42.7% 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 Upland

The closest place in this dataset with a meaningfully darker sky is Chino Hills, CA, roughly 13 miles away in a straight line, rated rural. Road distance will be more.

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

How Upland compares nationally

Upland, CA counts roughly 79,684 residents, among the 3,206 US cities this site tracks. Upland places 1,363 of 3,206 cities in this dataset's darkest-to-brightest order.