ST21 postcode district road traffic accidents
The ST21 postcode district recorded 467 collisions in the STATS19 data between 1999 and 2025, involving 638 casualties. Of these collisions, 4 were fatal and 60 were serious. Recorded collisions in 2025 were up 13% on 2024.
Severity Breakdown
- Fatal
- 4
- Serious
- 60
- Casualties
- 638
- Fatal
- 4
- Serious
- 60
- Casualties
- 638
Collisions by Year
Areas covering ST21
Towns in ST21
Roads in ST21
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the ST21 postcode district
Road collision statistics for the ST21 postcode district
Collisions recorded
467
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
638
Casualties recorded across every collision in this area.
Fatal collisions
4
Collisions in which at least one person died.
Serious collisions
60
13.7% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the ST21 postcode district
Collisions in the ST21 postcode district are most frequently recorded on a Wednesday (18.2% of the total), with 24% happening in darkness rather than daylight. The most common posted speed limit at the scene is 60 mph.
96.1% of recorded collisions in the ST21 postcode district happen on a single carriageway. Around 24% were recorded in adverse weather such as rain, snow or fog.
The collisions in the ST21 postcode district have produced 638 casualties. Pedestrians account for 4.9% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 61 collisions, Monday 65 collisions, Tuesday 58 collisions, Wednesday 85 collisions, Thursday 60 collisions, Friday 70 collisions, Saturday 68 collisions.
Light conditions
Light conditions: Daylight 355 collisions, Darkness 112 collisions.
Road type
Road type: Single carriageway 449 collisions, Roundabout 12 collisions, Dual carriageway 4 collisions, Unknown 1 collisions, One way street/Slip road 1 collisions.
Speed limit at the scene
Speed limit at the scene: 30 mph 102 collisions, 40 mph 21 collisions, 50 mph 34 collisions, 60 mph 310 collisions.
Weather at the time
Weather at the time: Fine no high winds 355 collisions, Raining no high winds 76 collisions, Fog or mist 8 collisions, Other 7 collisions, Unknown 7 collisions.
Who was hurt
Who was hurt: Driver or rider 459 casualties, Passenger 148 casualties, Pedestrian 31 casualties.
Move Insights
Thinking of moving to this area?
Check flood risk, planning history, EPC ratings and more with a Move Insights property report.
Recent Accidents
Showing 20 of 467 accidents
Accident 2023211263532
SlightAccident 2022211245329
SeriousAccident 2022211182361
SeriousAccident 2022211131447
SeriousAccident 2021211073939
SeriousAccident 2021211036648
SlightAccident 2021211041704
SlightAccident 2020211007537
SlightAccident 2020210993427
SlightAccident 2020210973049
SeriousAccident 2019210936611
SeriousAccident 2019210881272
SeriousAccident 2019210885283
SlightAccident 2019210895045
SlightAccident 2019210829954
SeriousAccident 2018210347802
SlightAccident 2018210350430
SlightAccident 2018210334681
SlightAccident 2018210302583
SlightAccident 2017210226540
SlightFrequently asked questions about road accidents in the ST21 postcode district
How many road accidents have there been in the ST21 postcode district?
467 collisions have been recorded in the ST21 postcode district in the STATS19 road safety data between 1999 and 2025, involving 638 casualties.
How many of the collisions in the ST21 postcode district were serious or fatal?
4 were fatal and 60 were serious — 13.7% of all recorded collisions in the ST21 postcode district resulted in a death or serious injury.
When do most road accidents happen in the ST21 postcode district?
Wednesday is the most common day for collisions in the ST21 postcode district, accounting for 18.2% of them, and 24% of all collisions here happen in darkness.
What kind of roads do collisions in the ST21 postcode district happen on?
96.1% of collisions in the ST21 postcode district are recorded on a single carriageway, most often where the limit is 60 mph.
Are pedestrians often hurt in collisions in the ST21 postcode district?
Pedestrians make up 4.9% of the 638 casualties recorded in the ST21 postcode district.
Is road safety in the ST21 postcode district getting better or worse?
Recorded collisions in the ST21 postcode district rose 13% in 2025 compared with 2024. Year-on-year figures move with both genuine risk and changes in reporting, so they are best read as a trend rather than a single verdict.
Where does the road accident data for the ST21 postcode district come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for the ST21 postcode district cover 1999 to 2025.