UK Postcode Risk & Readiness Rankings

Compare documented district evidence and preparedness resources. The 0–6 ranking below is a source-coverage score, not a live A–G disruption grade. Full postcode reports match Met Office weather warnings across the UK. The separate Environment Agency flood feed covers England; official flood services for Wales, Scotland and Northern Ireland are linked but not integrated.

District rankings by Data & Preparedness Score

26 of 38 district reports currently have a documented local flood record, a named warning area, council density and local guidance. The score counts documented evidence, not current risk. Equal scores share a rank. Open a district report for its local sources, then enter a full postcode for the nine-indicator breakdown.

1Bath · BA16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Blackpool · FY16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Bournemouth · BH16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Brighton · BN16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Bristol · BS16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Canterbury · CT16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Dover · CT166/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Exeter · EX16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Gwynedd · LL556/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Keswick · CA126/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2

See the other 28 district reports

1Leeds · LS16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Liverpool · L16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Llandudno · LL306/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Manchester · M16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Newcastle upon Tyne · NE16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Newport, Isle of Wight · PO306/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Newquay · TR76/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Nottingham · NG16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Oxford · OX16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Plymouth · PL16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Portsmouth · PO16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Sheffield · S16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1St Ives · TR266/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Westminster and Wandsworth · SW1A6/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1Windermere · LA236/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
1York · YO16/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 2/2
27Aberdeen · AB105/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Belfast · BT15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Birmingham · B15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Cambridge · CB15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Cardiff · CF105/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 1/2
27Derry / Londonderry · BT485/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Edinburgh · EH15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Glasgow · G15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Highland · IV275/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Inverness · IV15/6Evidence coverage: warnings 1/2 · guidance 2/2 · data 2/2
27Southampton · SO145/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 1/2
27Swansea · SA15/6Evidence coverage: warnings 2/2 · guidance 2/2 · data 1/2

How the score works

Flood-warning data available in the checker

1 · EnglandLive Environment Agency flood feed for full postcodes296 councils in the density dataset
2= · WalesNatural Resources Wales22 councils · external warning source
2= · ScotlandSEPA flood warnings32 councils · external warning source
2= · Northern Irelandnidirect flooding information11 councils · external flooding information

Ranks describe coverage in this website. They do not measure actual risk, council readiness or how well an individual address is protected. Sources and methods

UK council population density

ONS mid-2025 estimates cover 361 councils. The UK benchmark is 287 residents/km². Density measures resident concentration and is reported independently of warning coverage.

Highest population density

Tower Hamlets16,906 residents/km²
Islington15,113 residents/km²
Hackney13,980 residents/km²
Kensington and Chelsea12,019 residents/km²
Lambeth11,724 residents/km²
Hammersmith and Fulham11,598 residents/km²
Southwark10,817 residents/km²
Newham10,403 residents/km²
Camden9,948 residents/km²
Wandsworth9,919 residents/km²

Lowest population density

Na h-Eileanan Siar8 residents/km²
Highland9 residents/km²
Argyll and Bute13 residents/km²
Shetland Islands15 residents/km²
Orkney Islands22 residents/km²
Dumfries and Galloway23 residents/km²
Scottish Borders25 residents/km²
Powys26 residents/km²
Perth and Kinross29 residents/km²
Ceredigion41 residents/km²

Find a council

Source: ONS MYE5, people per square kilometre. Published densities are rounded and some councils tie. View source data