Santa Ana, CA: how dark is the sky here?

Santa Ana reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 77% of the 3,206 cities measured here read darker than Santa Ana.

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 Santa Ana is from a meaningfully darker sky

Anaheim, CA, about 11 miles away as the crow flies, measures in the suburban edge band, one step darker than Santa Ana. Actual driving distance will run longer than that straight-line figure.

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

How Santa Ana compares nationally

Santa Ana, CA has a population of about 316,184, one of 3,206 US cities of 10,000 or more residents in this dataset. Santa Ana places 2,455 of 3,206 cities in this dataset's darkest-to-brightest order.