IoT-enabled decentralized water purification plants provide a smart, scalable solution to deliver safe drinking water directly to communities, institutions, and remote areas where centralized systems often fall short. As growing populations and climate variability strain traditional water infrastructure, these advanced systems meet the urgent need for reliable, locally managed purification. Equipped with real-time monitoring, automated dosing, and data analytics, they enable proactive maintenance, ensure consistent water quality, and reduce operational costs. By combining technology with decentralization, these plants empower communities to manage their own water sustainably while improving health outcomes and building resilience against future challenges.