This brief summarizes the USAID Water, Sanitation and Hygiene Partnerships and Learning for Sustainability (WASHPaLS) activity that examined CLTS datasets in Liberia to quantify the extent to which environmental, demographic, accessibility, and socioeconomic factors affect ODF achievement. WASHPaLS examined 2015-2018 performance data from the Improved Water, Sanitation and Hygiene Program and the Partnership for Advancing Community-Based Services Program, both coordinated by Global Communities. The resulting dataset (2,011 villages) included villages from 151 clans (the smallest division of local government) out of 815 nationally.