LL55 1SE maps, stats, and open data
LL55 1SE lies on Castle Street in Caernarfon. LL55 1SE is located in the Canol Tref Caernarfon electoral ward, within the unitary authority of Gwynedd and the Welsh Parliamentary constituency of Arfon. The Local Health Board is Betsi Cadwaladr University and the police force is North Wales. This postcode has been in use since January 1980.
LL55 1SE maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
LL55 1SE geodata
| Easting | 247797 |
| Northing | 362788 |
| Latitude | 53.140441 |
| Longitude | -4.276895 |
Where is LL55 1SE?
| Street | Castle Street |
| Town/City | Caernarfon |
| Country | Wales |
| Postcode District | LL55 |
LL55 1SE Elevation
Elevation or altitude of LL55 1SE as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 10m | 33ft |
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 | Canol Tref Caernarfon |
|---|---|
| Constituency | Arfon |
Transport
Nearest bus stops to LL55 1SE
| Turf Square (Bangor Street) | Caernarfon | 196m |
| Asda (Bangor Street) | Twt Hill | 378m |
| Asda (Bangor Street) | Caernarfon | 384m |
| Asda (Bangor Street) | Caernarfon | 390m |
| Eagle Hotel (Pool Street) | Caernarfon | 447m |
Nearest underground/metro/tram to LL55 1SE
| Caernarfon (Welsh Highland Rly-caernarfon) | Caernarfon | 476m |
Broadband
Broadband access in LL55 1SE (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 LL55 1SE (2019 data)
Download
| Median download speed | 40.0Mbps |
| Average download speed | 43.8Mbps |
| Maximum download speed | 80.00Mbps |
Upload
| Median upload speed | 10.0Mbps |
| Average upload speed | 10.2Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in LL55 1SE (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% |
LL55 1SE gas and electricity consumption
Estimated total energy consumption in LL55 1SE by fuel type, 2015.
Gas
| Consumption (kWh) | 103,040 |
|---|---|
| Meter count | 9 |
| Mean (kWh/meter) | 11,449 |
| Median (kWh/meter) | 11,169 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in LL55 1SE, for 2015.
- Meter count: The total number of meters in LL55 1SE.
- 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
66.9% of Welsh postcodes are less deprived than LL55 1SE:Food Standards Agency
Three nearest food hygiene ratings to LL55 1SE (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to LL55 1SE
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Caernarfon Delivery Office | 17:30 | 13:00 | 188m |
| Y Maes | 17:30 | 12:30 | 233m |
| Y Maes Box | 17:30 | 12:30 | 233m |
LL55 1SE ITL and LL55 1SE 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 LL55 1SE:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL1 | West Wales and The Valleys |
| ITL 3 Code | Name |
| TLL12 | Gwynedd |
| LAU 1 Code | Name |
| W06000002 | Gwynedd |
LL55 1SE 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 LL55 1SE:
| Code | Name | |
|---|---|---|
| OA | W00000564 | |
| LSOA | W01000111 | Gwynedd 007C |
| MSOA | W02000016 | Gwynedd 007 |
Nearest postcodes to LL55 1SE
| LL55 1RN | High Street | 46m |
| LL55 1RR | Palace Street | 73m |
| LL55 1RH | High Street | 74m |
| LL55 1RT | Market Street | 91m |
| LL55 1SW | Church Street | 96m |
| LL55 1RF | Hole In The Wall Street | 96m |
| LL55 1SA | Church Lane | 142m |
| LL55 1AG | Eastgate Street | 145m |
| LL55 2NF | Castle Square | 154m |
| LL55 1SU | Bank Quay | 160m |
- 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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