Diana M. TordoffAdam PalayewBrittany N. PriceCourtney McKnightDon Des JarlaisElise HealyKelly KnudtsonKatelyn BenhoffLesly-Marie BuerSara GlickSarah Deutsch2024-11-112024-11-112023https://hdl.handle.net/1773/52653This document provides an overview of the different methods and considerations for estimating the size of the population who injects drugs. It is primarily intended for local health departments, academia, and other community-based organizations.en-USAttribution-NonCommercial 3.0 United Stateshttp://creativecommons.org/licenses/by-nc/3.0/us/People Who Inject DrugsPopulation EstimateTechnical Report