Fairfield, CA: how dark is the sky here?
Fairfield reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Fairfield's sky is brighter than 73.9% 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.
Where to go for a darker sky near Fairfield
Suisun City, CA, about 2 miles away as the crow flies, measures in the suburban edge band, one step darker than Fairfield. Actual driving distance will run longer than that straight-line figure.
Suisun City, 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 Fairfield compares nationally
Fairfield, CA has a population of about 122,646, one of 3,206 US cities of 10,000 or more residents in this dataset. Fairfield places 2,355 of 3,206 cities in this dataset's darkest-to-brightest order.