About 42 thousand people.

Mercedes is a charming river city in western Uruguay, sitting on the calm Rio Negro. It is known as one of the prettiest and cleanest towns in the country.
You can relax on the river beach, walk across the pretty riverside promenade, and visit a fun fossil museum full of ancient bones. Boat trips on the calm river are a favorite treat.
The gentle Rio Negro gives the town beaches, boat rides, and a lovely walking path along the water.
A local museum shows off ancient fossils and old bones that make history feel like a treasure hunt.