Cahokia Heights, IL: how dark is the sky here?

Cahokia Heights reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Cahokia Heights's sky is brighter than 47.5% 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.

How far Cahokia Heights is from a meaningfully darker sky

Fairview Heights, IL, about 8 miles away as the crow flies, measures in the suburban edge band, one step darker than Cahokia Heights. Actual driving distance will run longer than that straight-line figure.

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

How Cahokia Heights compares nationally

Cahokia Heights, IL counts roughly 17,052 residents, among the 3,206 US cities this site tracks. Cahokia Heights places 1,514 of 3,206 cities in this dataset's darkest-to-brightest order.