| Official Name: | San Borja |
| Settlement Type: | City |
| Pushpin Map: | Bolivia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Bolivia |
| Subdivision Type: | Country |
| Subdivision Name: | Bolivia |
| Subdivision Type1: | Department |
| Subdivision Name1: | Beni Department |
| Subdivision Type2: | Province |
| Subdivision Name2: | José Ballivián Province |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | San Borja Municipality |
| Subdivision Type4: | Canton |
| Subdivision Name4: | San Borja Canton |
| Population As Of: | 2012 |
| Population Footnotes: | [1] |
| Population Total: | 24610 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | BOT |
| Utc Offset: | -4 |
| Coordinates: | -14.8583°N -66.7475°W |
| Elevation M: | 197 |
| Area Code: | +591 389 |
San Borja is a city in the Beni Department in northern Bolivia, It is the most populous city in the province of General José Ballivián.
San Borja is the seat of the San Borja Municipality, the second municipal section of the José Ballivián Province.[2] The city is located at an elevation of on the left bank of Río Maniqui, a tributary of Río Rapulo which flows into Río Mamoré.
San Borja sits on the far southwestern edge of the Llanos de Moxos. San Borja straddles the transition zone from flat mosaics of floodplains and forest islands, to Southwestern Amazonian Rainforest. San Borja's orography is generally homogenous and flat.
San Borja has a tropical monsoon climate, type (Am) in the Köppen classification system bordering on a tropical rainforest climate. Rain is plentiful but divided between a distinct wet and dry season. Like many areas in Bolivia and Latin America generally, San Borja is subject to considerable fluctuations in seasonal and annual precipitation, particularly as a consequence of climate-change related anomalies.
By road, San Borja is situated west of the department's capital, Trinidad.
San Borja is connected towards the southwest with Yucumo situated on the road and a bus route La Paz - Yolosa/Coroico - Caranavi - Rurrenabaque. Yucumo is halfway between Caranavi and Rurrenabaque. Towards the east of San Borja Route 3 leads to San Ignacio de Moxos and farther to Trinidad, the capital of the Beni Department.
The airport of San Borja has regular services from two airlines: Línea Aérea Amaszonas and TAM - Transporte Aéreo Militar (the Bolivian Military Airline)
The town's population has increased strongly over the past three decades:
In spite of high migration figures over the past decades, the city still has a noteworthy percentage of indigenous population; 17.7 percent of the San Borja Municipality population speak local indigenous languages.[7]