Road & rail noise map for Amersham
Town in Buckinghamshire, South East
We analysed 710 postcodes in and around Amersham, Buckinghamshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 24% of them (172) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 72% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at HP7 0AE (road noise 65.0–69.9 dB by day).
Noise map of Amersham
How many postcodes are affected?
Road noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 12% (85) | 7% (49) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 9% (65) | 7% (52) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 3% (22) | <1% (7) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | 0% (0) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 76% | 85% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 3% (21) | 3% (20) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 1% (8) | 2% (13) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 0% (0) | 0% (0) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | 0% (0) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 96% | 95% |
Share of the 710 postcodes within ~5 km of the Amersham centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Amersham
Check a specific postcode
Example searches: HP6 5EX · HP6 5EY · HP6 5AZ · HP6 5DJ · HP6 5DH · HP6 5HN
What this data does — and doesn't — cover
- Modelled, not measured.These are DEFRA's computer-modelled estimates (Round 4, 2022), not microphone readings at your door.
- Major sources only. The model covers major roads, major railways and large urban areas. Smaller local roads, neighbours, pubs, building sites and aircraft are not included.
- No mapped noise ≠ quiet. If a location shows no band, it means it falls outside the mapped contours — not that it is silent.
- 2022 snapshot.New roads, developments or traffic changes since 2022 won't show. The next DEFRA round is due around 2027.
More detail on the methodology page.
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Nearby areas
Frequently asked questions
- How noisy is Amersham?
- We analysed 710 postcodes in and around Amersham, Buckinghamshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 24% of them (172) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 72% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at HP7 0AE (road noise 65.0–69.9 dB by day).
- Where is the most road noise in Amersham?
- The postcodes with the highest modelled daytime levels in and around Amersham are HP7 0AE, HP7 0RH, HP7 0JN, based on DEFRA's 2022 model of major roads and railways.