Road & rail noise map for Wymondham
Town in Norfolk, Eastern
We analysed 708 postcodes in and around Wymondham, Norfolk against DEFRA's Strategic Noise Mapping (Round 4, 2022). 16% of them (112) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 84% 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 NR18 9FU (road noise 65.0–69.9 dB by day).
Noise map of Wymondham
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 | 14% (100) | 4% (28) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 2% (11) | <1% (3) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (1) | 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 | 84% | 96% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (2) | <1% (1) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (1) | 0% (0) |
| 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 708 postcodes within ~5 km of the Wymondham centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Wymondham
Check a specific postcode
Example searches: NR18 9FU · NR18 0YL · NR18 0RF · NR18 0UL · NR18 0WW · NR18 0WF
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 Wymondham?
- We analysed 708 postcodes in and around Wymondham, Norfolk against DEFRA's Strategic Noise Mapping (Round 4, 2022). 16% of them (112) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 84% 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 NR18 9FU (road noise 65.0–69.9 dB by day).
- Where is the most road noise in Wymondham?
- The postcodes with the highest modelled daytime levels in and around Wymondham are NR18 9FU, NR18 9TG, NR18 9LP, based on DEFRA's 2022 model of major roads and railways.