Northamptonshire has bucked the national trend for the number of drug users who have successfully completed their treatment.
More than 60% of the people referred for drug rehabilitation treatment in the county last year completed at least 12 weeks of their programme.
The figures come from the National Drug Treatment Monitoring System.
In the last year the county's drug and alcohol action team also helped more than 1,550 people beat drugs.
That is an increase of one 150 on the previous year.