River City, Iowa, is a fictional town featured in the musical "The Music Man," created by Meredith Willson. The town is depicted as a small, close-knit community in the early 20th century, known for its charming streets and local traditions. In the story, River City becomes the setting for the arrival of a con man named Harold Hill, who attempts to sell the townspeople on the idea of starting a boys' band. The town's residents, including characters like Marian Paroo and Mayor Shinn, play a significant role in the unfolding drama and musical numbers.