| Place Name | Marshall |
| Place Type | Unincorporated |
| ZIP Code(s) | 94940 |
| County | Marin County |
| Area Code(s) | 415,628 |
| Timezone | Pacific Daylight Time (PDT) |
| Population () | |
| Metro/Micro Stats Area | San Francisco-Oakland-Berkeley, CA |
| US Congressional District(s) | California 2nd |
| State Assembly Districts | 12 |
| State Senate Districts | 2 |