São João da Fronteira (Portuguese meaning "Saint John of the frontier") is a municipality in the western part of the state of Piauí in Brazil. The population is 6,064 (2020 est.) in an area of 764.86 km².[2] The elevation is 458 m.
São João da Fronteira | |
|---|---|
 Location in Piauí state | |
  São João da Fronteira Location in Brazil | |
| Coordinates: 3°57′20″S 41°15′27″W / 3.95556°S 41.25750°W | |
| Country | Brazil |
| Region | Northeast |
| State | Piauí |
| Microregion | Litoral Piauiense |
| Area | |
| • Total | 764.86 km2 (295.31 sq mi) |
| Population (2020 [1]) | |
| • Total | 6,064 |
| • Density | 7.9/km2 (21/sq mi) |
| Time zone | UTC−3 (BRT) |
| Website | www |
The municipality contains part of the 1,592,550 hectares (3,935,300 acres) Serra da Ibiapaba Environmental Protection Area, created in 1996.[3]