The 4th Ward is one of the 50 aldermanic wards with representation in the City Council of Chicago, Illinois. It is broken into 52 election precincts. Lake Michigan is the ward's eastern boundary for much of its area. Its northwesternmost point, as of 2002, was located at the intersection of East 26th Street and South Prairie Avenue and its southeasternmost point at the intersection of East 55th Street and Lake Park Avenue.David K.