This collection consists of some 200 hard bound volumes of the property tax records of Contra Costa County. It provides detailed
property holdings of all persons owning taxable property in Contra Costa County from the beginning of the county through the
end of the 19th century. It also contains many maps delineating specific land holdings throughout the county from 1873. Many
of the maps have been digitized and are available at https://californiarevealed.org/collections/contra-costa-county-historical-society.
Contact the Contra Costa County Historical Society for publication permission.
The collection is open for research.