The Hudson River plays a crucial role in supplying drinking water to New York City through its surrounding watersheds and reservoirs.

The Hudson River, a major waterway in New York, is integral to the city's water supply system. While New York City's drinking water primarily comes from the Catskill, Delaware, and Croton reservoir systems, these are part of the Hudson River watershed. This extensive network collects and stores water from the surrounding areas, providing high-quality drinking water to millions of residents. The Hudson River itself supports ecological health and water flow within this system, though the city's reservoirs ensure the supply remains clean and reliable. The river’s significance extends beyond water supply, as it is also vital for transportation, recreation, and regional ecology.