Postcode SY21
Aberriw +36 · Powys, England
SY21 is the postcode of Aberriw, Brooks, Buttington and 34 other places in Powys, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- SY21
- County
- Powys, Shropshire
- Country
- England
- Country
- United Kingdom
37 places with postcode SY21
| Place | County | Location |
|---|---|---|
| Aberriw | Powys | 52.698, -3.166 |
| Brooks | Powys | 52.698, -3.166 |
| Buttington | Powys | 52.669, -3.111 |
| Castle Caereinion | Powys | 52.642, -3.238 |
| Dolanog | Powys | 52.705, -3.385 |
| Dolwen | Powys | 52.698, -3.166 |
| Foel | Powys | 52.658, -3.207 |
| Forden | Powys | 52.602, -3.142 |
| Four Crosses | Powys | 52.658, -3.207 |
| Fron | Powys | 52.698, -3.166 |
| Garreg Bank | Powys | 52.698, -3.166 |
| Garthmyl | Powys | 52.590, -3.192 |
| Groes-lwyd | Powys | 52.698, -3.166 |
| Guilsfield | Powys | 52.696, -3.157 |
| Heniarth | Powys | 52.698, -3.166 |
| Hope | Powys | 52.658, -3.207 |
| Kingswood | Powys | 52.658, -3.207 |
| Leighton | Powys | 52.650, -3.133 |
| Llanerfyl | Powys | 52.677, -3.432 |
| Llanfair Caereinion | Powys | 52.648, -3.327 |
| Llangadfan | Powys | 52.687, -3.464 |
| Llanllugan | Powys | 52.610, -3.395 |
| Llwydiarth | Powys | 52.698, -3.166 |
| Llwynderw | Powys | 52.698, -3.166 |
| Manafon | Powys | 52.612, -3.312 |
| Marton | Shropshire | 52.617, -3.050 |
| Melin-y-grug | Powys | 52.698, -3.166 |
| Middletown | Powys | 52.698, -3.166 |
| Nant-y-dugoed | Powys | 52.698, -3.166 |
| Pant-y-ffridd | Powys | 52.698, -3.166 |
| Pen-y-bont | Powys | 52.658, -3.207 |
| Pentre'r beirdd | Powys | 52.698, -3.166 |
| Pool Quay | Powys | 52.694, -3.102 |
| Trelystan | Powys | 52.627, -3.094 |
| Trewern | Powys | 52.669, -3.111 |
| Vaynor Park | Powys | 52.698, -3.166 |
| Welshpool | Powys | 52.660, -3.147 |
Near Liverpool
The nearest major city is Liverpool, about 84 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode SY21?
Aberriw, Brooks, Buttington, Castle Caereinion, Dolanog, Dolwen, Foel, Forden, Four Crosses, Fron, Garreg Bank, Garthmyl and 25 more.
Which county and country is SY21 in?
Powys, Shropshire, England, United Kingdom.
What is the nearest major city to SY21?
Liverpool, about 84 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.