Estimated Number of People Who Inject Drugs, By Region

"Approximately 59 per cent of PWID worldwide reside in East and South-East Asia, Eastern Europe and North America. Injecting drug use remains particularly prevalent in Eastern Europe and, to a lesser extent, Central Asia and Transcaucasia, and North America, with rates that are 5.8, 2.6 and 2.5 times the global average, respectively."

Source: 

UNODC, World Drug Report 2022 (United Nations publication, 2022).