In the 18th edition of the Sanitation Ranking for 2026, released by Instituto Trata Brasil in partnership with GO Associados, four cities from the Baixada Santista region stood out among the 100 largest municipalities in Brazil. Santos achieved an impressive 4th place nationally, while Praia Grande, São Vicente, and Guarujá were ranked 22nd, 25th, and 36th, respectively. This ranking is based on recent indicators from the National System of Basic Sanitation Information (Sinisa) for the year 2024.

Franca in São Paulo topped the ranking with an outstanding score, surpassing the targets set by the Legal Framework of Sanitation, with water service coverage at 99.46% and sewage collection and treatment at 98.91%. Santos, securing the 4th position, reported a water coverage of 99.33%, sewage collection at 98.46%, and a treatment rate of 81.91%, establishing itself as a regional reference in sanitation.

The recognition of these municipalities highlights the advancements in public health and infrastructure in Brazil, specifically within the Baixada Santista region. Improved sanitation services are essential for ensuring the health and well-being of the population, and cities that perform well in these rankings serve as examples for others. The findings from this ranking may push other municipalities to enhance their sanitation systems to meet the growing expectations of residents and regulatory standards.