What the night sky looks like over St. Petersburg, FL
Satellite radiance puts St. Petersburg in the urban band. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. That's brighter than 98.5% of the 3,206 US cities in this dataset.
The number comes from orbit, not a stargazer's logbook, so treat it as an estimate of sky glow rather than a certified Bortle class.
The nearest darker sky to St. Petersburg
The closest place in this dataset with a meaningfully darker sky is Gulfport, FL, roughly 4 miles away in a straight line, rated suburban. Road distance will be more.
Gulfport, FL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
St. Petersburg against the rest of the dataset
St. Petersburg, FL has a population of about 267,102, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, St. Petersburg ranks 3,140 from darkest to brightest, 1 being the darkest measured.