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

Boulder City's satellite reading came back at exactly zero, which is not a real measurement for a city of 15,029 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 "Boulder City'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 Boulder City

Henderson, NV is about 13 miles from Boulder City and has a trustworthy reading: suburban edge band. It's the closest usable stand-in until Boulder City's own figure is corrected.

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

Boulder City against the rest of the dataset

Boulder City, NV has a population of about 15,029, one of 3,206 US cities in this dataset, 3,187 of which have a usable brightness reading today.