This is a list of postcodes in the PL4 9 area covering the areas of Barbican, Lipson, Mount Gould, Mutley, Prince Rock, St. Judes, Plymouth. The area contains approximately 3,428 households with a population of about 7,621 (2011 census)
 Active postcode
Active postcode 
   Postcode no longer in use
Postcode no longer in use| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? | 
|---|---|---|---|---|---|---|
| PL4 9XT | 50.36441 | -4.104414 | 250424 | 53729 | SX504537 | No | 
| PL4 9XZ | 50.372576 | -4.128684 | 248724 | 54686 | SX487546 | No | 
| PL4 9YH | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9YJ | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9YL | 50.365569 | -4.105492 | 250351 | 53860 | SX503538 | Yes | 
| PL4 9YN | 50.372564 | -4.1195 | 249377 | 54666 | SX493546 | No | 
| PL4 9YP | 50.372564 | -4.1195 | 249377 | 54666 | SX493546 | No | 
| PL4 9YQ | 50.365569 | -4.105492 | 250351 | 53860 | SX503538 | Yes | 
| PL4 9YR | 50.372372 | -4.13101 | 248558 | 54669 | SX485546 | No | 
| PL4 9YS | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9YT | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9YU | 50.372564 | -4.1195 | 249377 | 54666 | SX493546 | No | 
| PL4 9YW | 50.372564 | -4.1195 | 249377 | 54666 | SX493546 | No | 
| PL4 9YX | 50.365569 | -4.105492 | 250351 | 53860 | SX503538 | No | 
| PL4 9YY | 50.372372 | -4.13101 | 248558 | 54669 | SX485546 | No | 
| PL4 9YZ | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9ZN | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No | 
| PL4 9ZQ | 50.36441 | -4.104414 | 250424 | 53729 | SX504537 | No | 
| PL4 9ZX | 50.378248 | -4.145535 | 247544 | 55352 | SX475553 | No |