| Official Name: | Castrillo de Riopisuerga |
| Settlement Type: | Municipality and town |
| Postal Code Type: | Postal code |
| Postal Code: | 09108 |
| Area Total Km2: | 17 |
| Elevation M: | 816 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Website: | http://www.castrilloderiopisuerga.es/ |
Castrillo de Riopisuerga is a municipality located in the province of Burgos, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 87 inhabitants. Sites of interest include Lock 10 of the Canal de Castilla and the Church of St. Bartholomew.[1]