of West Town area, and the rest of the area was absorbed in 1899 through the annexation of the Austin area. Before the 1909 re-numbering of Chicago's street addresses, all addresses west of the Chicago River were designated as "west," but this changed with the establishment of the address numbering system Chicago uses today. Madison Street is designated as the north-south axis and State Street as the east-west axis, but State Street is not included in and geographically very distant from the West Side. The most commonly referenced borders by officials that are assigned to the West Side are North Avenue to the north and 31st Street to the south. The western border is where the edge of the city meets the western suburbs of Oak Park and Cicero. These two suburbs border the communities of Austin, Lawndale, and Little Village. The eastern border is often the most disputed border by residents, real estate brokers, and city officials. While some will claim Western Avenue is the eastern border, those in the communities east of Western Avenue such as West Town, the Near West Side, and Pilsen have more historical and cultural ties to the West Side and the central, inner city area more so than to the North Side or South Side. In certain texts, the communities within West Town and Pilsen are grouped together as the Near Northwest Side and Near Southwest Side respectively. Therefore, using the Chicago River as an eastern border of the West Side becomes suitable. Regardless of how the boundaries are defined, the West Side is the smallest in area of the three sections of the city, with an area of 34.7 square miles. Community areas and neighborhoods According to the city's official division of its 77 community areas, nine community areas compose the West Side: West Town, the Near West Side, the Lower West Side, Humboldt Park, East Garfield Park, West Garfield Park, North Lawndale, South Lawndale, and Austin. Within these community areas are smaller neighborhoods, some of which match the community area's name and boundaries, and some of which do not use the community area's name at all. The three main community areas that do not match their colloquial neighborhood names are the Lower West Side, which is widely known as Pilsen; North Lawndale, which is simply known as Lawndale; and South Lawndale, which is widely known as Little Village. Neighborhoods within these