Most and fewest people in radon Affected Areas: places in South East (2022)

Adur, Brighton and Hove and Worthing had the joint highest share of people in radon Affected Areas of South East’s 64 councils in 2022, at 100%.

9 councils had the joint lowest, at 0%. The middle council, Epsom and Ewell, had 42%.

Map of people in radon Affected Area squares across the UK

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Compare the two figures

People in radon Affected Area squares for every council in South East, highest first. Councils without a figure are listed last with the reason.
Rank	Council	Value
=1	Adur	100%
=1	Brighton and Hove	100%
=1	Worthing	100%
4	Gravesham	97%
5	Arun	92%
6	Dartford	89%
7	Dover	87%
=8	Cherwell	86%
=8	Lewes	86%
=10	Eastbourne	84%
=10	Medway	84%
=12	Basingstoke and Deane	83%
=12	Maidstone	83%
14	West Oxfordshire	79%
15	Sevenoaks	75%
16	Folkestone and Hythe	74%
=17	Buckinghamshire	71%
=17	Chichester	71%
19	Tandridge	70%
20	Reigate and Banstead	66%
21	Reading	64%
=22	East Hampshire	63%
=22	Portsmouth	63%
24	Mole Valley	62%
25	Havant	56%
26	Windsor and Maidenhead	55%
27	Ashford	54%
28	Tonbridge and Malling	53%
=29	Eastleigh	46%
=29	Swale	46%
=29	West Berkshire	46%
=32	Epsom and Ewell	42%
=32	Fareham	42%
34	Winchester	38%
=35	Guildford	37%
=35	South Oxfordshire	37%
37	Milton Keynes	34%
38	Canterbury	33%
39	Waverley	30%
40	Oxford	29%
41	New Forest	28%
42	Isle of Wight	25%
43	Vale of White Horse	23%
44	Rushmoor	21%
45	Test Valley	20%
=46	Gosport	19%
=46	Southampton	19%
48	Horsham	18%
49	Hart	15%
50	Wealden	11%
=51	Slough	10%
=51	Wokingham	10%
=53	Crawley	1%
=53	Mid Sussex	1%
=53	Thanet	1%
=56	Bracknell Forest	0%
=56	Elmbridge	0%
=56	Hastings	0%
=56	Rother	0%
=56	Runnymede	0%
=56	Spelthorne	0%
=56	Surrey Heath	0%
=56	Tunbridge Wells	0%
=56	Woking	0%

Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Source and method · See it on the map