National Register of Historic Places listings in California

Buildings, sites, districts, and objects in California listed on the National Register of Historic Places: There are more than 2,800 properties and districts listed on the National Register of Historic Places in the 58 counties of California, including 145 designated as National Historic Landmarks. == Numbers of properties and districts by county == The following are approximate tallies of current listings in California on the National Register of Historic Places.

Source: Wikipedia — National Register of Historic Places listings in California (CC BY-SA 4.0)