[2] California has been growing with the spread of population from the older adjacent community of Lexington Park and the growth in both technology-related and defense-related jobs at the Patuxent River Naval Air Station.

Maryland Route 4 crosses Highway 235 in California, providing access to the wide Governor Thomas Johnson Bridge and the popular weekend resort town of Solomons on its opposite side.

The racial makeup was 70.7% White, 18.3% Black, 5.7% Hispanic or Latino, 4.6% Asian, 0.5% Indigenous American, and 0.1% Pacific Islander.

[9] In 2017, California, Maryland was listed as the metropolitan area with the fourth highest number of households with investable assets above one million dollars.

[10] In 2019, Forbes Magazine listed California, Maryland as one of the best small places for business and careers in the nation with a ranking of 69.