San Mateo County Libraries
The San Mateo County Libraries, formerly San Mateo County Library, is a public library system and Joint Powers Authority headquartered in San Mateo, California. Its motto is "Open for Exploration".
It is a member of the Peninsula Library System. It serves the smaller cities of San Mateo County who do not have a city library.
Locations
The following locations are a part of the system:| Branch | Street Address | City | ZIP | Image |
| Atherton | 2 Dinkelspiel Station Lane | Atherton | 94027 | |
| Belmont | 1110 Alameda de las Pulgas | Belmont | 94002 | |
| Bookmobile | 620 Correas Street | Half [Moon Bay, California|Half Moon Bay] | 94019 | |
| Brisbane | 163 Visitacion Avenue | Brisbane | 94005 | |
| East Palo Alto | 2415 University Avenue | East Palo Alto | 94303 | |
| Foster City | 1000 East Hillsdale Boulevard | Foster City | 94404 | |
| Half Moon Bay | 620 Correas Street | Half Moon Bay | 94019 | |
| Millbrae | 1 Library Avenue | Millbrae | 94030 | |
| North Fair Oaks | 2510 Middlefield Road | Redwood City | 94030 | |
| Pacifica Sanchez | 1111 Terra Nova Boulevard | Pacifica | 94044 | |
| Pacifica Sharp Park | 104 Hilton Way | Pacifica | 94044 | |
| Portola Valley | 765 Portola Road | Portola Valley | 94028 | |
| San Carlos | 610 Elm Street | San Carlos | 94070 | |
| Woodside | 3140 Woodside Road | Woodside | 94062 |
The bookmobile service travels around the county to various locations like schools, post offices, and even the Hiller Aviation Museum.