| Loudwater | |
|---|---|
 Loudwater sign depicting a mill that once stood there | |
  Loudwater Location within Buckinghamshire | |
| Population | 4,170 |
| OS grid reference | SU905905 |
| Civil parish | |
| Unitary authority | |
| Ceremonial county | |
| Region | |
| Country | England |
| Sovereign state | United Kingdom |
| Post town | HIGH WYCOMBE |
| Postcode district | HP10 |
| Dialling code | 01494, 01628 |
| Police | Thames Valley |
| Fire | Buckinghamshire |
| Ambulance | South Central |
| UK Parliament | |
Loudwater is a village in the parish of Chepping Wycombe in Buckinghamshire, England. It is located in the valley to the east of High Wycombe, on the A40 London Road.