# Most and fewest people in radon Affected Areas: places in East of England (2022) Watford had the highest share of people in radon Affected Areas of East of England’s 45 councils in 2022, at 92%. 12 councils had the joint lowest, at 0%. The middle council, South Cambridgeshire, had 7%. Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. | Rank | Area | People in radon Affected Area squares | | --- | --- | --- | | 1 | [Watford](https://openindex.co.uk/watford) | 92% | | 2 | [Dacorum](https://openindex.co.uk/dacorum) | 91% | | 3 | [St Albans](https://openindex.co.uk/st-albans) | 83% | | 4 | [Three Rivers](https://openindex.co.uk/three-rivers) | 75% | | 5 | [Ipswich](https://openindex.co.uk/ipswich) | 69% | | 6 | [Luton](https://openindex.co.uk/luton) | 66% | | 7 | [Thurrock](https://openindex.co.uk/thurrock) | 57% | | 8 | [Babergh](https://openindex.co.uk/babergh) | 54% | | 9 | [Welwyn Hatfield](https://openindex.co.uk/welwyn-hatfield) | 51% | | =10 | [North Hertfordshire](https://openindex.co.uk/north-hertfordshire) | 45% | | =10 | [Stevenage](https://openindex.co.uk/stevenage) | 45% | | 12 | [East Hertfordshire](https://openindex.co.uk/east-hertfordshire) | 40% | | 13 | [King's Lynn and West Norfolk](https://openindex.co.uk/kings-lynn-and-west-norfolk) | 39% | | 14 | [East Suffolk](https://openindex.co.uk/east-suffolk) | 26% | | 15 | [Hertsmere](https://openindex.co.uk/hertsmere) | 24% | | 16 | [Huntingdonshire](https://openindex.co.uk/huntingdonshire) | 23% | | 17 | [Broxbourne](https://openindex.co.uk/broxbourne) | 19% | | 18 | [Uttlesford](https://openindex.co.uk/uttlesford) | 16% | | 19 | [West Suffolk](https://openindex.co.uk/west-suffolk) | 15% | | 20 | [East Cambridgeshire](https://openindex.co.uk/east-cambridgeshire) | 13% | | =21 | [Breckland](https://openindex.co.uk/breckland) | 12% | | =21 | [Mid Suffolk](https://openindex.co.uk/mid-suffolk) | 12% | | 23 | [South Cambridgeshire](https://openindex.co.uk/south-cambridgeshire) | 7% | | =24 | [Bedford](https://openindex.co.uk/bedford) | 6% | | =24 | [Broadland](https://openindex.co.uk/broadland) | 6% | | =24 | [Central Bedfordshire](https://openindex.co.uk/central-bedfordshire) | 6% | | 27 | [Peterborough](https://openindex.co.uk/peterborough) | 5% | | =28 | [Fenland](https://openindex.co.uk/fenland) | 3% | | =28 | [Harlow](https://openindex.co.uk/harlow) | 3% | | =28 | [South Norfolk](https://openindex.co.uk/south-norfolk) | 3% | | =31 | [North Norfolk](https://openindex.co.uk/north-norfolk) | 2% | | =31 | [Tendring](https://openindex.co.uk/tendring) | 2% | | 33 | [Epping Forest](https://openindex.co.uk/epping-forest) | 1% | | =34 | [Basildon](https://openindex.co.uk/basildon) | 0% | | =34 | [Braintree](https://openindex.co.uk/braintree) | 0% | | =34 | [Brentwood](https://openindex.co.uk/brentwood) | 0% | | =34 | [Cambridge](https://openindex.co.uk/cambridge) | 0% | | =34 | [Castle Point](https://openindex.co.uk/castle-point) | 0% | | =34 | [Chelmsford](https://openindex.co.uk/chelmsford) | 0% | | =34 | [Colchester](https://openindex.co.uk/colchester) | 0% | | =34 | [Great Yarmouth](https://openindex.co.uk/great-yarmouth) | 0% | | =34 | [Maldon](https://openindex.co.uk/maldon) | 0% | | =34 | [Norwich](https://openindex.co.uk/norwich) | 0% | | =34 | [Rochford](https://openindex.co.uk/rochford) | 0% | | =34 | [Southend-on-Sea](https://openindex.co.uk/southend-on-sea) | 0% | Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Period: 2022. Period: 2022. ## Other rankings of this measure - [UK](https://openindex.co.uk/rankings/radon-affected-areas/uk) - [England](https://openindex.co.uk/rankings/radon-affected-areas/england) - [Northern Ireland](https://openindex.co.uk/rankings/radon-affected-areas/northern-ireland) - [Scotland](https://openindex.co.uk/rankings/radon-affected-areas/scotland) - [Wales](https://openindex.co.uk/rankings/radon-affected-areas/wales) - [North East](https://openindex.co.uk/rankings/radon-affected-areas/north-east) - [North West](https://openindex.co.uk/rankings/radon-affected-areas/north-west) - [Yorkshire and The Humber](https://openindex.co.uk/rankings/radon-affected-areas/yorkshire-and-the-humber) - [East Midlands](https://openindex.co.uk/rankings/radon-affected-areas/east-midlands) - [West Midlands](https://openindex.co.uk/rankings/radon-affected-areas/west-midlands) - [London](https://openindex.co.uk/rankings/radon-affected-areas/london) - [South East](https://openindex.co.uk/rankings/radon-affected-areas/south-east) - [South West](https://openindex.co.uk/rankings/radon-affected-areas/south-west) - [The map](https://openindex.co.uk/map/radon-affected-areas) - [Source and method](https://openindex.co.uk/sources/radon-affected-areas) - [The two measures side by side](https://openindex.co.uk/map/radon#vs=population&mode=blend) ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/rankings/radon-affected-areas/east-of-england. Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it. Snapshot 2026.10.11. The HTML page: https://openindex.co.uk/rankings/radon-affected-areas/east-of-england