and the remaining parts of the town of Norwalk were both combined in 1910 to form the current city.

The Ku Klux Klan had a brief presence in Norwalk during the 1920s, but quickly fell apart due to internal issues. In 1955, multiple hurricanes hit the city, causing flooding in Norwalk Harbor. During the 1970s, efforts were taken to historically preserve South Norwalk, resulting in the creation of the Washington Street Historic District.