Poorly managed sanitary infrastructure in Latin America is a key driver of poverty in the region. A lack of proper sewage and access to clean water exposes millions—particularly in rural and low-income urban areas—to easily preventable diseases. This disease burden reduces productivity, keeps students out of school and expands inequality. Women and girls endure the hardest impact, having a diminished chance of obtaining a proper education.

The Depth of Economic Disparity

In 2020, only 34% of the population in Latin America and the Caribbean had access to safely managed sanitary infrastructure, leaving more than 400 million people without such services, while about 75% had access to safely managed drinking water.

Shortages particularly affect informal settlements, where infrastructure cannot match population expansion. Cholera and typhoid cause long-term illnesses that undermine workforce productivity and increase poverty. World Bank econometric modeling illustrates that global WASH investment can yield $5–$7 in returns for every $1 invested through avoided health costs and improved productivity. Failing to invest in sanitation creates a cycle of disease and economic stagnation. A lack of proper sanitation is a major factor in global mortality and morbidity, particularly from diarrheal diseases, with ripple effects including reduced workforce productivity and higher health care costs for civilians.

Societal and Structural Barriers

Wider ripples in society cause sanitation issues, leading to millions of schooldays lost annually. Around 83 million people in the Americas lack improved sanitation and 15.6 million still defecate in the open. Peri-urban communities in Bolivia are not yet linked to sewerage systems, leading to pollution of the environment and health risks. People residing in indigenous communities of the Amazon region often employ rudimentary waste systems, which still pose repeated risks to health. In addition, women and children often do the task of collecting water, spending hours doing so in unhygienic conditions—hours they could spend on education or income generation.

Environmental and Governance Challenges

Hasty urbanization regularly surpasses sanitary infrastructure in Latin America, with the result that informal settlements in flood areas lack sewage and drainage. Climate-related floods in Honduras have overwhelmed these compromised systems, resulting in extensive water pollution and disease outbreaks. Underinvestment, bad regulation, institutional fragility and corruption are further hindrances, rooted in governance problems. In the absence of open, community-oriented planning, susceptible groups face a lack of access to basic services.

Paving the Path Forward

Interventions in the right direction are taking place throughout the region. Water For People employs its “Everyone Forever” strategy to support communities in sustaining water and sanitation infrastructure. Water.org subsidizes home WASH improvements through microloans to promote family-level resilience and dignity. The Inter‑American Development Bank (IDB) invests significantly in WASH systems in Latin America. In Bolivia, an IDB loan of $40 million is consolidating basic sanitation services in small municipalities, in addition to larger projects worth $100 million with Spain designed to expand water and sanitation to half a million peri‑urban dwellers.

These initiatives not only improve sanitary infrastructure in Latin America but also strengthen local institutional capacity and promote community engagement. UNICEF promotes school-based WASH programs aimed at equitable, gender-sensitive facilities and hygiene education, which improve attendance and dignity—especially for girls.

Emerging technologies like decentralized sanitation systems—composting toilets and neighborly treatment units—are gaining ground in hard-to-reach or slum areas. These avoid the logistics of sewerage centralization while offering low-cost, community-led sanitation.

Moving Toward a Healthier Future

Latin America’s sanitation crisis is inexorably connected with economic inequality, educational losses, environmental risk and gender disparities. A multifaceted response can potentially ease the burden on vulnerable populations through sustained WASH investment, effective governance, active community engagement and effective local governance.

– Anoushka Rai

Anoushka is based in Frisco, Texas, USA and focuses on Good News and Global Health for The Borgen Project.

Photo: Flickr