# Most and least people in loud road or rail noise: London boroughs (2021)

City of London had the highest share of people in loud road or rail noise of London’s 33 boroughs in 2021, at 24.2%.

Hillingdon had the lowest, at 4.8%. The middle borough, Merton, had 8.1%.

Worked out by Open Index from Defra's strategic noise maps and census output areas.

| Rank | Area | People in loud road or rail noise |
| --- | --- | --- |
| 1 | [City of London](https://openindex.co.uk/city-of-london) | 24.2% |
| 2 | [Westminster](https://openindex.co.uk/westminster) | 18.8% |
| 3 | [Kensington and Chelsea](https://openindex.co.uk/kensington-and-chelsea) | 17.7% |
| =4 | [Southwark](https://openindex.co.uk/southwark) | 15.0% |
| =4 | [Tower Hamlets](https://openindex.co.uk/tower-hamlets) | 15.0% |
| 6 | [Camden](https://openindex.co.uk/camden) | 14.2% |
| 7 | [Islington](https://openindex.co.uk/islington) | 12.9% |
| 8 | [Hammersmith and Fulham](https://openindex.co.uk/hammersmith-and-fulham) | 12.6% |
| 9 | [Lambeth](https://openindex.co.uk/lambeth) | 11.7% |
| =10 | [Hackney](https://openindex.co.uk/hackney) | 11.6% |
| =10 | [Wandsworth](https://openindex.co.uk/wandsworth) | 11.6% |
| 12 | [Lewisham](https://openindex.co.uk/lewisham) | 11.5% |
| 13 | [Brent](https://openindex.co.uk/brent) | 10.6% |
| 14 | [Newham](https://openindex.co.uk/newham) | 10.5% |
| 15 | [Barnet](https://openindex.co.uk/barnet) | 9.8% |
| 16 | [Croydon](https://openindex.co.uk/croydon) | 8.3% |
| 17 | [Merton](https://openindex.co.uk/merton) | 8.1% |
| 18 | [Greenwich](https://openindex.co.uk/greenwich) | 8.0% |
| 19 | [Hounslow](https://openindex.co.uk/hounslow) | 7.9% |
| 20 | [Haringey](https://openindex.co.uk/haringey) | 7.8% |
| 21 | [Ealing](https://openindex.co.uk/ealing) | 7.4% |
| 22 | [Barking and Dagenham](https://openindex.co.uk/barking-and-dagenham) | 6.6% |
| 23 | [Richmond upon Thames](https://openindex.co.uk/richmond-upon-thames) | 6.4% |
| 24 | [Harrow](https://openindex.co.uk/harrow) | 6.3% |
| 25 | [Waltham Forest](https://openindex.co.uk/waltham-forest) | 6.1% |
| =26 | [Enfield](https://openindex.co.uk/enfield) | 6.0% |
| =26 | [Redbridge](https://openindex.co.uk/redbridge) | 6.0% |
| 28 | [Bexley](https://openindex.co.uk/bexley) | 5.6% |
| 29 | [Sutton](https://openindex.co.uk/sutton) | 5.5% |
| 30 | [Kingston upon Thames](https://openindex.co.uk/kingston-upon-thames) | 5.1% |
| 31 | [Havering](https://openindex.co.uk/havering) | 5.0% |
| 32 | [Bromley](https://openindex.co.uk/bromley) | 4.9% |
| 33 | [Hillingdon](https://openindex.co.uk/hillingdon) | 4.8% |

Source: Worked out by Open Index from Defra's strategic noise maps and census output areas. Covers England. Period: 2021. Period: 2021.

## Other rankings of this measure

- [England](https://openindex.co.uk/rankings/loud-transport-noise/england)
- [North East](https://openindex.co.uk/rankings/loud-transport-noise/north-east)
- [North West](https://openindex.co.uk/rankings/loud-transport-noise/north-west)
- [Yorkshire and The Humber](https://openindex.co.uk/rankings/loud-transport-noise/yorkshire-and-the-humber)
- [East Midlands](https://openindex.co.uk/rankings/loud-transport-noise/east-midlands)
- [West Midlands](https://openindex.co.uk/rankings/loud-transport-noise/west-midlands)
- [East of England](https://openindex.co.uk/rankings/loud-transport-noise/east-of-england)
- [South East](https://openindex.co.uk/rankings/loud-transport-noise/south-east)
- [South West](https://openindex.co.uk/rankings/loud-transport-noise/south-west)

- [The map](https://openindex.co.uk/map/loud-transport-noise)
- [Source and method](https://openindex.co.uk/sources/loud-transport-noise)
- [The two measures side by side](https://openindex.co.uk/map/noise-by-postcode#vs=population&mode=blend)

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/rankings/loud-transport-noise/london.

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/loud-transport-noise/london