| Official Zip Code Name | Rail Road Flat |
| Zip Code State | California |
| Primary County: | Calaveras |
| Area Code | 209 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 8 |
| Elevation Range | 2723 ft. |
| Area | 31.582 Sqm. |
| Coordinates(Y,X) | 38.340800, -120.516200 |