Road & rail noise map for Northfleet
Town in Kent, South East
We analysed 829 postcodes in and around Northfleet, Kent against DEFRA's Strategic Noise Mapping (Round 4, 2022). 24% of them (202) have mapped road noise of 55 dB or more by day, and 1% have mapped rail noise. 75% 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 DA11 9LZ (road noise 65.0–69.9 dB by day).
Noise map of Northfleet
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% (163) | 6% (51) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 4% (30) | 3% (24) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 1% (9) | <1% (6) |
| 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% | 90% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (8) | 1% (10) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (1) | <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 829 postcodes within ~5 km of the Northfleet centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Northfleet
Check a specific postcode
Example searches: DA11 8EX · DA11 9DS · DA11 7PE · DA11 8AA · DA11 9BH · DA11 9LY
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 Northfleet?
- We analysed 829 postcodes in and around Northfleet, Kent against DEFRA's Strategic Noise Mapping (Round 4, 2022). 24% of them (202) have mapped road noise of 55 dB or more by day, and 1% have mapped rail noise. 75% 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 DA11 9LZ (road noise 65.0–69.9 dB by day).
- Where is the most road noise in Northfleet?
- The postcodes with the highest modelled daytime levels in and around Northfleet are DA11 9LZ, DA11 9LY, DA11 9BH, based on DEFRA's 2022 model of major roads and railways.