Road & rail noise map for Folkestone
Town in Kent, South East
We analysed 1,714 postcodes in and around Folkestone, Kent against DEFRA's Strategic Noise Mapping (Round 4, 2022). 32% of them (557) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 67% 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 CT20 1NX (road noise 70.0–74.9 dB by day).
Noise map of Folkestone
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 | 20% (339) | 10% (172) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 10% (171) | 8% (132) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 3% (46) | 1% (18) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (1) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 68% | 81% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (2) | <1% (3) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (1) | <1% (2) |
| 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 | 100% | 100% |
Share of the 1,714 postcodes within ~5 km of the Folkestone centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Folkestone
Check a specific postcode
Example searches: CT20 1NX · CT18 7HY · CT18 7RU · CT18 7EJ · CT18 7AY · CT19 4ET
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 Folkestone?
- We analysed 1,714 postcodes in and around Folkestone, Kent against DEFRA's Strategic Noise Mapping (Round 4, 2022). 32% of them (557) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 67% 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 CT20 1NX (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Folkestone?
- The postcodes with the highest modelled daytime levels in and around Folkestone are CT20 1NX, CT19 5BT, CT20 1TA, based on DEFRA's 2022 model of major roads and railways.