Investment gaps and weak governance are slowing the expansion of safe drinking water access for billions of people worldwide, according to the World Health Organization.

This shortfall in infrastructure and oversight threatens global public health by leaving vast populations vulnerable to preventable waterborne diseases. Without a surge in political will and funding, the gap between urban and rural water security is expected to persist.

Bruce Gordon, head of WHO’s water, sanitation, hygiene, and health unit, said that a lack of political will and governance challenges are primary drivers of the current crisis. These systemic failures prevent the implementation of sustainable water systems in the regions that need them most.

Data indicates that 2.1 billion people currently lack safely managed drinking water [1]. Among this population, 106 million people rely directly on untreated water sources [1]. Other estimates suggest about 2 billion people lack regular access to clean drinking water [2].

The human cost of these failures is measured in lives lost. Approximately 800,000 people die annually from water-related illnesses [2]. These deaths are often preventable through basic filtration and sanitation infrastructure, investments that Gordon said are currently insufficient.

Addressing these gaps requires more than just financial capital. Gordon said that governance must improve to ensure that funds reach the local level and that water systems are maintained over the long term. Current trajectories suggest that without a shift in priority, billions will continue to face water insecurity in 2026 [2].

“2.1 billion people currently lack safely managed drinking water”

The disparity in water access highlights a critical failure in global infrastructure governance. When billions lack safe water despite existing technological solutions, the bottleneck is political and financial rather than technical. This suggests that achieving universal water security depends less on new inventions and more on the reallocation of national budgets and the strengthening of local regulatory frameworks.