| Postcode | CA20 1NN | 
|---|---|
| Post Town | Seascale | 
| Nearest station | Seascale (1 km) | 
| Bus stops | Post Office (NE) Seascale Park (NE) Seascale Park (SW) Post office (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 17 View | 
| Known addresses | 1 The Dunes, Seascale 2 The Dunes, Seascale 3 The Dunes, Seascale 4 The Dunes, Seascale 5 The Dunes, Seascale 6 The Dunes, Seascale 7 The Dunes, Seascale 8 The Dunes, Seascale 9 The Dunes, Seascale 10 The Dunes, Seascale 11 The Dunes, Seascale 12 The Dunes, Seascale 13 The Dunes, Seascale 14 The Dunes, Seascale 15 The Dunes, Seascale | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 54.402 | |
|---|---|---|
| Longitude | -3.476783 | |
| Easting | 304231 | |
| Northing | 501731 | |
| Grid reference | NY042017 | |
| UTM reference | 30U 469049 6028354 | |
| what3words | culminate.reflect.vase | |
| FixPhrase | crummy lunchtime saturday tableful | |
| Plus code | 9C6RCG2F+R7 | |
| Altitude | 32 metres (104 feet) | |
| Sunrise (today) | 7:14 | |
| Sunset (today) | 16:42 | |
| Distance away | ||
| Distance to sea | 1.8 KMs (1.1 miles) | 
| Parish | Seascale | E04002505 | 
|---|---|---|
| Ward | Gosforth | E05014190 | 
| Unitary Authority | Cumberland | E06000063 | 
| County | Cumbria | E10000006 | 
| Constituency (2024) | Whitehaven and Workington | E14001583 | 
| MP | Josh MacAlister | Labour | 
| Police force | Cumbria | |
| Water company | United Utilities | |
| NUTS/ITL 3 | Cumberland | |
| NUTS/ITL 2 | Cumbria | |
| NUTS/ITL 1 | North West | |
| Country | England | E92000001 | 
| Date introduced | November 2016 | 
|---|---|
| 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 | 
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
|---|---|---|
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Larger rural Further from a major town or city | |
| Rural/urban (2011) | Rural town and fringe in a sparse setting | |
| Built up area (2024) | Seascale | E63007475 | 
| Census output area (2021) | E00097569 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Copeland 007E | E01019303 | 
| Lower layer super output area (2011) | Copeland 007E | E01019303 | 
| Middle layer super output area (2021) | Thornhill, Gosforth & Seascale | E02004006 | 
| Middle layer super output area (2011) | Thornhill, Gosforth & Seascale | E02004006 | 
| Travel to work area | Whitehaven | E30000286 | 
| Average property price in Carlisle | £186,745 | 
|---|---|
| Annual change | 0.9% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 12 The Dunes, Seascale | Detached (freehold) | Nov 2020 | £230,000 | 
| New build detached (freehold) | Jul 2018 | £200,000 | |
| 13 The Dunes, Seascale | New build detached (freehold) | Feb 2019 | £199,950 | 
| 9 The Dunes, Seascale | New build detached (freehold) | Nov 2018 | £210,000 | 
| 14 The Dunes, Seascale | New build detached (freehold) | Aug 2018 | £200,000 | 
| 10 The Dunes, Seascale | New build detached (freehold) | Mar 2018 | £209,950 | 
| 15 The Dunes, Seascale | New build detached (freehold) | Mar 2018 | £209,950 | 
| 11 The Dunes, Seascale | New build detached (freehold) | Dec 2017 | £219,950 | 
| 3 The Dunes, Seascale | New build detached (freehold) | Dec 2017 | £199,950 | 
| 4 The Dunes, Seascale | New build detached (freehold) | Oct 2017 | £199,950 | 
| 8 The Dunes, Seascale | New build detached (freehold) | Aug 2017 | £199,950 |