SY21 0DY maps, stats, and open data
SY21 0DY lies on Trembanwy in Llanfair Caereinion, Welshpool. SY21 0DY is located in the Llanfair Caereinion and Llanerfyl electoral ward, within the unitary authority of Powys and the Welsh Parliamentary constituency of Montgomeryshire. The Local Health Board is Powys Teaching and the police force is Dyfed-Powys. This postcode has been in use since June 1981.
SY21 0DY maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SY21 0DY geodata
| Easting | 309934 |
| Northing | 306120 |
| Latitude | 52.645314 |
| Longitude | -3.332602 |
Where is SY21 0DY?
| Street | Trembanwy |
| Locality | Llanfair Caereinion |
| Town/City | Welshpool |
| Country | Wales |
| Postcode District | SY21 |
SY21 0DY Elevation
Elevation or altitude of SY21 0DY as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 180m | 591ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Llanfair Caereinion And Llanerfyl |
|---|---|
| Constituency | Montgomeryshire |
Transport
Nearest bus stops to SY21 0DY
| Maes Derwyn | Llanfair Caereinion | 93m |
| Minffordd | Llanfair Caereinion | 116m |
| Maes Gwyn | Llanfair Caereinion | 126m |
| Minffordd (Watergate Street) | Llanfair Caereinion | 134m |
| Heol Bowys | Llanfair Caereinion | 168m |
Nearest underground/metro/tram to SY21 0DY
| Llanfair Caereinion Station (W&llr) | Llanfair Caereinion | 959m |
Broadband
Broadband access in SY21 0DY (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in SY21 0DY (2019 data)
Download
| Median download speed | 44.0Mbps |
| Average download speed | 44.3Mbps |
| Maximum download speed | 56.21Mbps |
Upload
| Median upload speed | 10.0Mbps |
| Average upload speed | 10.1Mbps |
| Maximum upload speed | 14.15Mbps |
Broadband limitations in SY21 0DY (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
SY21 0DY gas and electricity consumption
Estimated total energy consumption in SY21 0DY by fuel type, 2015.
Electricity
| Consumption (kWh) | 39,763 |
|---|---|
| Meter count | 11 |
| Mean (kWh/meter) | 3,615 |
| Median (kWh/meter) | 3,065 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SY21 0DY, for 2015.
- Meter count: The total number of meters in SY21 0DY.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
34.9% of Welsh postcodes are less deprived than SY21 0DY:Food Standards Agency
Three nearest food hygiene ratings to SY21 0DY (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SY21 0DY
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Llanfair Station | 17:00 | 11:15 | 972m |
| Four Crosses | 16:45 | 10:00 | 5,051m |
SY21 0DY ITL and SY21 0DY LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SY21 0DY:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL2 | East Wales |
| ITL 3 Code | Name |
| TLL24 | Powys |
| LAU 1 Code | Name |
| W06000023 | Powys |
SY21 0DY census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SY21 0DY:
| Code | Name | |
|---|---|---|
| OA | W00002456 | |
| LSOA | W01000460 | Powys 006B |
| MSOA | W02000102 | Powys 006 |
Nearest postcodes to SY21 0DY
| SY21 0DX | Awelfa | 78m |
| SY21 0BB | Maes Derwen | 86m |
| SY21 0BU | Heol Bowys | 94m |
| SY21 0BT | Minfford | 127m |
| SY21 0BD | Maes Gwyn | 155m |
| SY21 0BS | 168m | |
| SY21 0SQ | Bryn Y Coed | 184m |
| SY21 0BF | Parc Yr Onnen | 255m |
| SY21 0RF | Watergate Street | 353m |
| SY21 0RE | Watergate Street | 382m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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