# Most and fewest people in radon Affected Areas: places in Northern Ireland (2022)

Derry City and Strabane had the highest share of people in radon Affected Areas of Northern Ireland’s 11 councils in 2022, at 99%.

Antrim and Newtownabbey and Belfast had the joint lowest, at 14%. The middle council, Armagh City, Banbridge and Craigavon, had 54%.

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 | [Derry City and Strabane](https://openindex.co.uk/derry-city-and-strabane) | 99% |
| 2 | [Fermanagh and Omagh](https://openindex.co.uk/fermanagh-and-omagh) | 92% |
| 3 | [Newry, Mourne and Down](https://openindex.co.uk/newry-mourne-and-down) | 83% |
| 4 | [Mid Ulster](https://openindex.co.uk/mid-ulster) | 68% |
| 5 | [Ards and North Down](https://openindex.co.uk/ards-and-north-down) | 60% |
| 6 | [Armagh City, Banbridge and Craigavon](https://openindex.co.uk/armagh-city-banbridge-and-craigavon) | 54% |
| 7 | [Lisburn and Castlereagh](https://openindex.co.uk/lisburn-and-castlereagh) | 32% |
| 8 | [Causeway Coast and Glens](https://openindex.co.uk/causeway-coast-and-glens) | 25% |
| 9 | [Mid and East Antrim](https://openindex.co.uk/mid-and-east-antrim) | 24% |
| =10 | [Antrim and Newtownabbey](https://openindex.co.uk/antrim-and-newtownabbey) | 14% |
| =10 | [Belfast](https://openindex.co.uk/belfast) | 14% |

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)
- [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)
- [East of England](https://openindex.co.uk/rankings/radon-affected-areas/east-of-england)
- [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/northern-ireland.

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/northern-ireland