| Number of Borders | Answer | Counties Bordered | % Correct |
|---|---|---|---|
| Two Borders | Imperial | Riverside, San Diego | 100%
|
| Three Borders | San Diego | Imperial, Orange, Riverside | 100%
|
| One Border | San Francisco | San Mateo | 100%
|
| Three Borders | San Mateo | San Francisco, Santa Clara, Santa Cruz | 100%
|
| Three Borders | Santa Cruz | Monterey, San Mateo, Santa Clara | 100%
|
| Three Borders | Ventura | Kern, Los Angeles, Santa Barbara | 100%
|
| Two Borders | Del Norte | Humboldt, Siskiyou | 67%
|
| One Border | Marin | Sonoma | 67%
|
| Three Borders | Modoc | Lassen, Shasta, Siskiyou | 67%
|
| Three Borders | Nevada | Placer, Sierra, Yuba | 67%
|