Road & rail noise map for Eastleigh
Town in Hampshire, South East
We analysed 2,682 postcodes in and around Eastleigh, Hampshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (579) 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 SO50 9SD (road noise 70.0–74.9 dB by day).
Noise map of Eastleigh
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 | 15% (414) | 7% (183) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 5% (124) | 4% (97) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 1% (36) | <1% (25) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (5) | <1% (1) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 78% | 89% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (20) | <1% (25) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (9) | <1% (5) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (2) | <1% (3) |
| 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 2,682 postcodes within ~5 km of the Eastleigh centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Eastleigh
Check a specific postcode
Example searches: SO50 9YN · SO53 3LG · SO50 5QX · SO50 9SD · SO16 2HY · SO16 2HA
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 Eastleigh?
- We analysed 2,682 postcodes in and around Eastleigh, Hampshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (579) 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 SO50 9SD (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Eastleigh?
- The postcodes with the highest modelled daytime levels in and around Eastleigh are SO50 9SD, SO16 2HY, SO50 5QX, based on DEFRA's 2022 model of major roads and railways.