St. Louis County officials believe a strong public awareness campaign about the dangers of heroin use are having an impact.
The county has reported 14 deaths from heroin through April 10, down from 32 over the same period last year - a drop of more than 50 percent.
St. Louis County appears to be a outlier in the region however - the St. Louis Post-Dispatch reports that St. Louis city, and St. Charles, Jefferson and Franklin counties in Missouri, and Madison County, Ill. may be on pace for more heroin deaths this year than last.