Road & rail noise map for Emsworth
Town in Hampshire, South East
We analysed 763 postcodes in and around Emsworth, Hampshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 21% of them (161) have mapped road noise of 55 dB or more by day, and 1% have mapped rail noise. 78% 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 PO10 8AU (road noise 70.0–74.9 dB by day).
Noise map of Emsworth
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 | 13% (97) | 6% (47) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 7% (55) | 5% (35) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (7) | <1% (6) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (2) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 79% | 88% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 1% (8) | 1% (9) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 0% (0) | <1% (1) |
| 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 | 99% | 99% |
Share of the 763 postcodes within ~5 km of the Emsworth centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Emsworth
Check a specific postcode
Example searches: PO10 8AU · PO10 8AP · PO10 8EY · PO10 7RB · PO10 7LE · PO10 8HB
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 Emsworth?
- We analysed 763 postcodes in and around Emsworth, Hampshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 21% of them (161) have mapped road noise of 55 dB or more by day, and 1% have mapped rail noise. 78% 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 PO10 8AU (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Emsworth?
- The postcodes with the highest modelled daytime levels in and around Emsworth are PO10 8AU, PO10 8AP, PO11 0PT, based on DEFRA's 2022 model of major roads and railways.