I believe heroin is a bigger problem in rural areas because most of the time rural areas do not have the resources and programs to deal with heroin addictions. In urban communities, they have been dealing with drug issues for decades. In urban communities, it has been swept under the rug and not acknowledged as a disease but as a weakness. For rural communities to deal with heroin and heroin users they need to invest in solving the problem.
Heroin used to be a drug for the rich; mainly consumed in large urban areas. In recent years, heroin has become cheaper, and more accessible in rural areas. This has resulted in a substantial increase in the amount of heroin abuse in less populated areas. In fact, many small towns are seeing a crisis when it comes to heroin abuse and overdosing.
Yes, heroin is probably a bigger problem in rural areas than it is in urban areas. There may not be many activities for those in the area to engage in other than drug use. Furthermore, it is not as taboo in a rural area and there may not be many programs to deter people from using drugs in rural areas.
First instinct for many would be quite the opposite and that heroin was a bigger problem in more populated areas, however, drug problems know nothing of geography and location. Further, if there were an overdose recorded in a dense city and one recorded in the lesser populated areas of the Louisiana swamps, the world has suffered equally.