CA20
Postcode districtPostcode district covering Seascale and Gosforth, in Cumberland.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an CA20 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 12% of people in CA20 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How CA20 compares
Each dot is a postcode district. The black line marks the middle one.
Is CA20 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CA20 at a rate of 53.7 per 1,000 people.
That compares with 79.3 per 1,000 people across the CA postcode area.
In August 2026 alone, 14 cases of crime and anti-social behaviour were recorded in CA20.
In the 12 months to August 2026, the most common types were violence and sexual offences (81), other crime (59) and criminal damage and arson (23).
A year earlier, the recorded crime rate in CA20 was 57.6 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in CA20, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so CA20 has no single figure. Of its 2 neighbourhoods with a rank:
- Decile 6: 1 neighbourhood
- Decile 8: 1 neighbourhood
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in CA20
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Copeland 007C | 1,327 | 47.5 per 1,000 | 6 | 65.0% |
| Copeland 007E | 1,495 | 58.5 per 1,000 | 8 | 88.6% |
Your MP
- Josh MacAlisterLabourMP for Whitehaven and Workington
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in CA201
Postcode sectors in CA201
Council1
Postcode districts next to CA205
Nearest rail stations3
More in the CA postcode area2
CA20 in brief
CA20 is a postcode district covering Seascale and Gosforth, in Cumberland.
About 3,316 people lived in CA20 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £212,500 in 2025 across 72 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 53.7 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CA20 was £212,500 in 2025.
CA20 had 3,211 usual residents at the census.
About 12% of people in CA20 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CA20, 73.4% of homes and businesses could get gigabit-capable broadband in January 2026.