Blackpool has the highest rate of heroine/morphine misuse deaths in all of England and Wales, according to data released by the Office for National Statistics.
Five other seaside towns - Bournemouth, Portsmouth, Hastings, Thanet and Swansea - also feature in the top 10 local authorities with the highest rates of death for heroine or morphine misuse.
Burnley, Reading, Hyndburn and Neath Port Talbot complete the top 10.
We have downloaded the publicly available data from the ONS and used it to create an interactive map of heroine/morphine deaths by local authority. Click below to see where your local authority ranks.