Marathon, FL: how dark is the sky here?

Marathon 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. Only 27.2% of the 3,206 cities measured here read darker than Marathon.

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 Marathon

Palm Beach Gardens, FL, about 156 miles away as the crow flies, measures in the rural band, one step darker than Marathon. Actual driving distance will run longer than that straight-line figure.

Palm Beach Gardens, FL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

How Marathon compares nationally

About 10,039 people live in Marathon, FL, sized enough to appear in this dataset of 3,206 incorporated US cities. Marathon places 870 of 3,206 cities in this dataset's darkest-to-brightest order.