LL65 1UN lies on Market Street in Holyhead. LL65 1UN is located in the Tref Cybi electoral ward, within the unitary authority of Isle of Anglesey and the Welsh Parliamentary constituency of Ynys Môn. The Local Health Board is Betsi Cadwaladr University and the police force is North Wales. This postcode has been in use since January 1980.


| Easting | 224643 |
| Northing | 382469 |
| Latitude | 53.310046 |
| Longitude | -4.633505 |
| Street | Market Street |
| Town/City | Holyhead |
| Country | Wales |
| Postcode District | LL65 |
Elevation or altitude of LL65 1UN 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.
| Ward | Tref Cybi |
|---|---|
| Constituency | Ynys Môn |
41, MARKET STREET, HOLYHEAD, LL65 1UN 2007 21 DEC £359,000 |
UNIT 1, MAYPOLE STEPS, MARKET STREET, HOLYHEAD, LL65 1UN 2007 4 JAN £42,500 |
41, MARKET STREET, HOLYHEAD, LL65 1UN 2006 14 JUL £350,000 |
UNIT 1, MAYPOLE STEPS, MARKET STREET, HOLYHEAD, LL65 1UN 2004 7 APR £35,000 |
| Clock (Victoria Terrace) | Holyhead | 113m |
| Hill Street Car Park (Hill Street) | Holyhead | 121m |
| Summer Hill | Holyhead | 225m |
| Railway Station (Victoria Street) | Holyhead | 234m |
| British Terrace (Alderley Terrace) | Holyhead | 289m |
| Holyhead Station | 0.3km |
| Valley Station | 5.7km |
| Median download speed | 40.0Mbps |
| Average download speed | 43.7Mbps |
| Maximum download speed | 80.00Mbps |
| Median upload speed | 2.0Mbps |
| Average upload speed | 7.6Mbps |
| Maximum upload speed | 20.00Mbps |
Estimated total energy consumption in LL65 1UN by fuel type, 2015.
| Consumption (kWh) | 121,040 |
|---|---|
| Meter count | 18 |
| Mean (kWh/meter) | 6,724 |
| Median (kWh/meter) | 1,322 |
| Consumption (kWh) | 28,771 |
|---|---|
| Meter count | 15 |
| Mean (kWh/meter) | 1,918 |
| Median (kWh/meter) | 613 |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Gors | 16:00 | 11:45 | 796m |
| Morrison's | 17:30 | 12:30 | 2,934m |
| Market Street | 17:00 | 11:45 | 4,128m |
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 LL65 1UN:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL1 | West Wales and The Valleys |
| ITL 3 Code | Name |
| TLL11 | Isle of Anglesey |
| LAU 1 Code | Name |
| W06000001 | Isle of Anglesey |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for LL65 1UN:
| Code | Name | |
|---|---|---|
| OA | W00000077 | |
| LSOA | W01000016 | Isle of Anglesey 003A |
| MSOA | W02000003 | Isle of Anglesey 003 |
| LL65 1RR | Thomas Street | 66m |
| LL65 1UD | Victoria Road | 66m |
| LL65 1RN | William Street | 72m |
| LL65 1UL | Market Street | 77m |
| LL65 1UW | Market Street | 96m |
| LL65 1RW | Tower Gardens | 98m |
| LL65 1SN | Mount Pleasant | 104m |
| LL65 1UF | Market Square | 115m |
| LL65 1ND | Hill Street | 129m |
| LL65 1RT | Garreg Domas | 140m |