| Place Name | San Mateo |
| Place Type | Unincorporated |
| ZIP Code(s) | 32187 |
| County | Putnam County |
| Area Code(s) | 386 |
| Timezone | Eastern Standard Time (EST) |
| Population () | |
| Metro/Micro Stats Area | Palatka, FL |
| US Congressional District(s) | Florida 6th |
| State House Districts | 20 |
| State Senate Districts | 7 |