Below is a list of California Historical Landmarks organized by county.
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed on the country's National Register of Historic Places are recognized as National Historic Landmarks.
A California Historical Landmark (CHL) is a building, structure, site, or place in California that has been determined to have statewide historical landmark significance.
Buildings, sites, districts, and objects in California listed on the National Register of Historic Places:
This is a list of the National Register of Historic Places listings in San Diego County, California.
This is a list of the National Register of Historic Places listings in Orange County, California.
This is a list of the National Register of Historic Places listings in Ventura County, California.
This is a list of the National Register of Historic Places listings in Contra Costa County, California.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Santa Clara County, California, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in an online map.
This is a list of the National Register of Historic Places listings in Riverside County, California.
This is a list of the National Register of Historic Places listings in Sacramento County, California.
This is a list of the National Register of Historic Places listings in Santa Cruz County, California.
This is a list of the National Register of Historic Places listings in Mariposa County, California.
This is a list of the National Register of Historic Places listings in San Mateo County, California.
This is a list of the National Register of Historic Places listings in Santa Barbara County, California.
This is a list of the National Register of Historic Places listings in Nevada County, California.
This is a list of the National Register of Historic Places listings in San Luis Obispo County, California.
This is a list of the National Register of Historic Places listings in Inyo County, California.
This is a list of the National Register of Historic Places listings in San Benito County, California.