This is a list of postcodes in the SY16 area covering the areas of Newtown, Powys. The area contains approximately 6,935 households with a population of about 16,021 (2011 census)
Active postcode 
  
Postcode no longer in use| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? | 
|---|---|---|---|---|---|---|
| SY16 9AD | 0 | 0 | No | |||
| SY16 9AE | 0 | 0 | No | |||
| SY16 9AF | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AG | 0 | 0 | No | |||
| SY16 9AH | 0 | 0 | No | |||
| SY16 9AJ | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AL | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AN | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AQ | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AR | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AS | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9AT | 52.514329 | -3.313267 | 310977 | 291527 | SO109915 | No | 
| SY16 9AU | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9AW | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9AX | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9AY | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9AZ | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9BA | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9BD | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9BE | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9BF | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9BG | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | No | 
| SY16 9BH | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9BJ | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes | 
| SY16 9BL | 52.51432 | -3.313267 | 310977 | 291526 | SO109915 | Yes |