Communities                             

• Año Nuevo - New Year's Point (Historic Register - Steele Dairy - State Beach)
• Atherton  town 1923
• Belmont town 1926
• Brisbane 1961
• Broadmoor unincorporated
• Burlingame  
  • Burlingame in Pictures
• Camp Fremont  World War I Training Camp
• Colma / Colma History  town 1924
• Crystal Springs
• Daly City 
• East Palo Alto  City 1983/1987
  • Weeks Poultry Colony - Runnymede
• El Granada Unincorporated
• Fair Oaks (see Atherton) 
• Foster City  City 1971
• Hillsborough City 1910
• King's Mountain - unincorporated
• Half Moon Bay City 1959
• La Honda - unincorporated
• Linda Mar (see Pacifica)
• Menlo Park  1874-1876/ 1923
  • Stanford Village
• Millbrae  City 1948
• Miramar (Half Moon Bay)
• Montara unincorporated
• Moss Beach - Fitzgerald Reserve
• Pacifica  City 1957
• Pescadero   unicorporated
• Pigeon Point Light House
• Portola Valley Town 1964
• Princeton by the Sea
• Purissima abandoned
• Redwood City City 1868 - County seat
  • Friendly Acres History Corner
• Ravenswood (East Palo Alto)
• Salada Beach (See Pacifica)
• San Benito (See Half Moon Bay)        
• San Bruno City 1914    
• San Carlos City 1926
• San Gregorio 
• San Mateo  1894
  • Imagine San Mateo
• San Pedro (see Pacifica) 
• Searsville  Abandoned 1891 when Searsville Dam was built 
• South San Francisco 1908 
• Spanishtown (See Half Moon Bay)
• Thornton Beach State Park 
• Waddell's Landing - (1864-1880)
• West Union - defunct map 
• Westlake (see Daly City) 
• Woodside

Institutions & Hospitals 

• County Poor Farm
• Dibble Army Hospital - Menlo Park
• Granger's Sanitarium - Belmont
• Red Cross Hospital - San Mateo

Photographs of San Mateo County 

• NoeHill in San Francisco - Photographs of historic sites and points of interest in San Mateo County
• San Mateo County History Stories - Videos by Penninsula TV on Vimeo
• Bits of History - Exploring San Mateo County Historical Photographs
• LOC - Prints and Photographs - San Mateo County
• Calisphere - San Mateo
• Penny Postcards From California - San Mateo County