St. Allen is located in Cornwall. About 459 people live here (as of 2021). Between 2011 and 2021, the population grew from 456 to 459. St. Allen has around 8 streets. The postal codes are TR4. St. Allen is hamlet and civil parish in Cornwall, England, UK. Among other things, St. Allen has public transport.
| Located in | Cornwall |
| Postal code | TR4 |
| Country | United Kingdom |
| Population | 459 |
| Described by source | Akademi Kernewek's Place Names |
| Cycle path |
| Cycle lane on road |
| Cycling on bus lane |
| Bicycle street |
| Cyclists allowed |
| Cyclists allowed, good surface |
| No cycling |
| Cobblestones |
| Long-distance cycle route | (depending on scale) |
| Long-distance cycle route |
| Long-distance hiking trail | (depending on scale) |
| Long-distance hiking trail |
| No pedestrians |
Public transport map St. Allen Legend 
Cycling map St. Allen Legend 
Walking map St. Allen Legend