Welcome To. San Bernardino County, California. Main Street San Bernardino, circa 1920. The California USGenWeb Project. My name is Steve Lech. I am the person responsible for San Bernardino County, California. ... and Historical Societies within both. Riverside and San Bernardino County: ......
Census tracts are small, relatively permanent subdivisions of a county that are defined by the U.S. Census Bureau in conjunction with local authorities all across the country to define real neighborhoods that are bounded to contain areas with homogeneous population characteristics (including economic st...