This research aimed to determine the optimal location for a third landfill in Shelby County, TN to address the growing waste generation. Three potential sites were identified and evaluated based on factors like population density, accessibility, health concerns, and overlap with current landfill service areas using GIS tools. Candidate site 3 scored highest overall based on its accessibility, minimal overlap with existing landfills, and proximity to highways without being too close to residential areas. Establishing a third landfill in this location could help increase waste coverage, reduce transportation costs and emissions, and prolong the lifespan of the other two landfills.