 West of the North Branch of the Chicago River, the street is known as Diversey Avenue, and separates the neighborhoods of Avondale to the north and Logan Square to the south.Further west, Diversey Avenue is a major street in Chicago's Hermosa, Belmont Cragin, and Montclare neighborhoods, and it continues intermittently through the west suburbs.The street is named after 19th century beer brewer Michael Diversey.