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CrashStats

NN12 road accidents: crash map and statistics

Police recorded 3,360 road traffic collisions in the NN12 postcode district, West Northamptonshire, from 1979 to 2025, and 4,962 people were killed or injured in them. Of those collisions, 127 were fatal and 962 were serious.

In 2025 police recorded 51 collisions, up 6% on 2024 (48).

Collisions since 1979
3,360
1,161st highest of 2,813 postcode districts
Casualties
4,962
1.48 per collision
Fatal collisions
127
143 people killed
Serious collisions
962
1,281 seriously injured
Collisions in 2025
51
Up 6% on 2024
Casualties in 2025
69
Down 5% on 2024

Road collision statistics for NN12

Collisions by severity, 1979 to 2025

  • Fatal1273.8%
  • Serious96229%
  • Slight2,27168%

What the data shows

  • NN12 had 425 collisions from 2016 to 2025, 17% fewer than the 510 from 2006 to 2015.
  • 32% of collisions in NN12 were fatal or serious, against 20% across Great Britain.
  • 435 children under 16 were killed or injured in NN12, 8.8% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 42% of collisions in NN12.

Where NN12 ranks among 2,813 postcode districts

Most collisions
1,161st
Most casualties
1,009th
Most fatal collisions
135th
Most serious collisions
439th

Collisions by day of the week

  • Monday468 (14%)
  • Tuesday435 (13%)
  • Wednesday405 (12%)
  • Thursday456 (14%)
  • Friday632 (19%)
  • Saturday499 (15%)
  • Sunday465 (14%)

Light conditions

  • Daylight2,400 (71%)
  • Dark, no street lighting637 (19%)
  • Dark, street lights lit242 (7.2%)
  • Dark, lighting unknown57 (1.7%)
  • Dark, street lights unlit24 (0.7%)

Type of road

  • Single carriageway2,907 (87%)
  • Dual carriageway285 (8.5%)
  • Roundabout147 (4.4%)
  • One way street or slip road16 (0.5%)
  • Not recorded5 (0.1%)

Speed limit at the scene

  • 20 mph4 (0.1%)
  • 30 mph697 (21%)
  • 40 mph84 (2.5%)
  • 50 mph148 (4.4%)
  • 60 mph2,140 (64%)
  • 70 mph287 (8.5%)

Weather at the time

  • Fine, no high winds2,561 (76%)
  • Raining, no high winds473 (14%)
  • Fog or mist82 (2.4%)
  • Fine with high winds52 (1.5%)
  • Snowing, no high winds35 (1%)
  • Raining with high winds34 (1%)
  • Snowing with high winds7 (0.2%)
  • Other73 (2.2%)
  • Not recorded43 (1.3%)

Who was hurt

  • Car occupant3,473 (70%)
  • Motorcyclist633 (13%)
  • Pedestrian261 (5.3%)
  • Goods vehicle occupant (over 3.5 tonnes)168 (3.4%)
  • Cyclist165 (3.3%)
  • Van occupant164 (3.3%)
  • Bus or coach occupant36 (0.7%)
  • Minibus occupant26 (0.5%)
  • Other vehicle occupant16 (0.3%)
  • Taxi or private hire car occupant14 (0.3%)
  • Other6 (0.1%)

Source: Department for Transport, STATS19 road safety data

NN12 road accidents by year

Collisions and casualties in NN12, 1979 to 2025

Collisions in NN12 peaked at 117 in 1989; 2025 had 51.

  • Collisions
  • Collisions in 2025: 51
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255169
20244873
20233957
20224159
20214763
20202635
20194369
20184054
20173858
20165266
20155375
20144461
20134664
20126387
20114256
20104353
20095568
20086178
20075672
20064782
20057292
200475112
200388133
200276105
200172101
200093141
199996154
199884135
199787148
199668109
199574113
199483124
199392142
199267103
199178110
1990109168
1989117190
198891141
1987112151
1986103146
198598161
1984101167
198393138
1982109147
198194142
1980101142
197992148

Map of recent crashes in NN12

Map of the 24 most recent crashes in NN12

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in NN12

The 24 most recent collisions in NN12 happened between 14 July and 7 December 2025.

Severity

Crashes by road in NN12

The A5 has the most collisions in NN12, 842 of 3,360 (25%), followed by the A43 (827).

Collisions in NN12 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA58421,24141260
2ndA438271,30939222
3rdA5083495511597
4thA41388128630
5thB45252228010

Council areas covering NN12

Collisions in NN12 were recorded in 2 council areas. West Northamptonshire has 3,349 of 3,360 (99.7%).

Collisions in NN12 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stWest Northamptonshire3,3494,946127957
2ndBuckinghamshire101505

Towns in NN12

Collisions in NN12 were recorded in 2 towns, led by Towcester (515) and Silverstone (138).