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| Territorial extension: 69 kmq | Altitude: 772 m |
| Number of residents: 4.189 | Density of population: 61 |
| Postal Code: 53025 | Patron: San Filippo Neri (26 maggio) |
| Accommodations: 14 | Places of interest: 7 |
| Official Website: http://www.comune.piancastagnaio.siena.it | |



















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