| Official Name: | Alton, Louisiana |
| Pushpin Map: | Louisiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Louisiana |
| Subdivision Type2: | Parish |
| Subdivision Name2: | St. Tammany |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 26 |
| Coordinates: | 30.3308°N -89.7619°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 70452 |
| Area Code: | 985 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 559769 |
| Blank1 Name: | FIPS code |
| Blank1 Info: | 22-01675 |
Alton is an unincorporated community in St. Tammany Parish, Louisiana, United States. The community is located 3miles north of Slidell on U.S. Route 11, north of I-12.[1]