| Postcode | LL31 9QE | 
|---|---|
| Post Town | Conwy, Llandudno Junction | 
| Nearest station | Llandudno Junction (1 km) | 
| Bus stops | Post Office (NE) Nant y Coed (SE) | 
| Roads in this postcode | |
| Number of UPRNs | 23 View | 
| Known addresses | Bryn Dyffryn, Segurinside Hafan, Segurinside Pabo Bach, Segurinside Pabo Cottage, Segurinside Plas Cornell, Segurinside Rocklands, Segurinside Runnymede, Segurinside Segurinfawr, Segurinside The Old Smithy, Segurinside Tyn Y Felin, Segurinside | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 53.292963 | |
|---|---|---|
| Longitude | -3.793282 | |
| Easting | 280568 | |
| Northing | 378834 | |
| Grid reference | SH805788 | |
| UTM reference | 30U 447124 5905154 | |
| what3words | outbid.overdrive.lyricism | |
| FixPhrase | crouton lunchbox sulfur tapeless | |
| Plus code | 9C5R76V4+5M | |
| Altitude | 83 metres (271 feet) | |
| Sunrise (today) | 7:12 | |
| Sunset (today) | 16:47 | |
| Distance away | ||
| Distance to sea | 3 KMs (1.8 miles) | 
| Parish | Conwy | W04000902 | 
|---|---|---|
| Ward | Glyn y Marl | W05001415 | 
| Unitary Authority | Conwy | W06000003 | 
| County | Clwyd | W11000001 | 
| Constituency (2024) | Bangor Aberconwy | W07000083 | 
| MP | Claire Hughes | Labour | 
| Police force | North Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Conwy and Denbighshire | |
| NUTS/ITL 2 | North Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 30 | |
|---|---|---|
| Households (2011) | 12 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Census output area (2021) | W00000946 | |
| Census output area (2011) | 6B2 | |
| Lower layer super output area (2021) | Conwy 011E | W01000177 | 
| Lower layer super output area (2011) | Conwy 011E | W01000177 | 
| Middle layer super output area (2021) | Llandudno Junction South & Llasanffraid Glan Conwy | W02000037 | 
| Middle layer super output area (2011) | Llandudno Junction South & Llasanffraid Glan Conwy | W02000037 | 
| Travel to work area | Colwyn Bay | W22000026 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Tyn Y Felin, Segurinside | Detached (freehold) | Apr 2023 | £450,000 | 
| Detached (freehold) | Jan 2000 | £130,000 | |
| Rocklands, Segurinside | Detached (freehold) | Mar 2021 | £810,000 | 
| Detached (freehold) | Jan 2017 | £107,000 | |
| Pabo Bach, Segurinside | Other (freehold) | Sep 2020 | £230,000 | 
| Plas Cornell, Segurinside | Detached (freehold) | Nov 2018 | £210,000 | 
| Pabo Cottage, Segurinside | Other (freehold) | Nov 2018 | £100,000 | 
| Runnymede, Segurinside | Detached (freehold) | Mar 2016 | £430,000 | 
| Hafan, Segurinside | Detached (freehold) | Feb 2014 | £124,950 | 
| Detached (freehold) | Nov 2003 | £165,000 | |
| Segurinfawr, Segurinside | Detached (freehold) | Sep 2013 | £341,500 | 
| Bryn Dyffryn, Segurinside | Detached (freehold) | May 2009 | £410,000 | 
| The Old Smithy, Segurinside | Detached (freehold) | Aug 2006 | £437,000 |