| Official Name: | São José do Barreiro |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -22.6447°N -44.5778°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Southeast |
| Subdivision Type2: | State |
| Subdivision Name2: | São Paulo |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Name4: | Bananal |
| Subdivision Type5: | Metrop. region |
| Subdivision Name5: | Vale do Paraíba e Litoral Norte |
| Leader Title: | Mayor |
| Area Total Km2: | 570.69 |
| Population Total: | 4,144 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Postal Code Type: | Postal code |
| Postal Code: | 12510-xxx |
| Area Code Type: | Area code |
| Area Code: | +55-16 |
São José do Barreiro (São José in Portuguese means Saint Joseph) is a municipality in the eastern part of the state of São Paulo, Brazil.The population is 4,144 (2020 est.) in an area of 570.69 km2.[2]
São José do Barreiro is in the microregion of Bananal. Both to the north and south it borders the state of Rio de Janeiro. It is part of the Metropolitan Region of Vale do Paraíba e Litoral Norte.[3] The municipality contains part of the Mananciais do Rio Paraíba do Sul Environmental Protection Area, created in 1982 to protect the sources of the Paraíba do Sul river.The southern part of the municipality is part of the Serra da Bocaina National Park. Its main industries are cattle and tourism.
In telecommunications, the city was served by Companhia Telefônica Brasileira until 1973, when it began to be served by Telecomunicações de São Paulo.[4] In July 1998, this company was acquired by Telefónica, which adopted the Vivo brand in 2012.
The company is currently an operator of cell phones, fixed lines, internet (fiber optics/4G) and television (satellite and cable).[5]