Clare has the highest proportion of drivers with penalty points in the entire country.
An Irish Times analysis of road safety data shows almost one in four motorists in the county have received points.
By contrast, Donegal, had the lowest proportion of drivers with penalty points, almost half the rate recorded in Clare. Other counties with low rates include Monaghan, Kerry and Mayo.
The survey also finds that the proportion of road deaths was significantly higher for counties with low numbers of penalty points.
Monaghan has the most dangerous roads in the State, with 13 deaths per 100,000 people. Kerry and Donegal also have low penalty points, but their roads are more dangerous than most, with between eight and nine deaths per 100,000 population.