DarkSkyCheck

Goodyear, AZ Night Sky Brightness (Reading Flagged)

Goodyear's reading looks wrong, and this site says so rather than hide it

Reading flagged
Not shown

Goodyear's satellite reading came back at exactly zero, which is not a real measurement for a city of 118,186 people, it means the sample point most likely missed the lit part of town, landing on open water, a shadowed hillside, or just a bad coordinate. Real cities this size do not read true zero.

This is flagged instead of shown as a normal result because reporting it as "Goodyear's dark sky" would be reporting a data error as a fact, see the data quality guide for how this gets checked.

The nearest reliable reading to Goodyear

Buckeye, AZ is about 20 miles from Goodyear and has a trustworthy reading: dark sky band. It's the closest usable stand-in until Goodyear's own figure is corrected.

Because Goodyear's own coordinate is what produced the bad reading, that distance figure is itself approximate, not a confirmed measurement.

Goodyear against the rest of the dataset

Goodyear, AZ has a population of about 118,186, one of 3,206 US cities in this dataset, 3,187 of which have a usable brightness reading today.

The dataset and sampling method behind every one of those readings, flagged or not, are in the methodology guide.