April 26, 1853 - San Bernardino County

                       The County of San Bernardino

San Bernardino County was formed on April 26, 1853 from parts of Los Angeles County.  Some of the southern parts of the county's territory were given to Riverside County in 1893.

San Bernardino County covers an area of 20,105 square miles and is the largest county in the United States by area. It is larger than each of the nine smallest states, larger than the four smallest states of New Jersey, Connecticut, Deleware and Rhode Island combined and larger than 71 different sovereign nations.

The first U. S. Census (1860) listed the population of San Bernardino City as 940, the County - 5,551 and the State - 379,994.  As of the 2010 U. S. Census, the County population was 2,035,210.