Cook County

Cook County is located in the state of Illinois and has the second largest population in the entire country, followed only by Los Angeles County. The county includes more than 130 incorporated municipalities, of which the biggest is Chicago, the county seat. Cook County is also divided into 30 different townships, so you get an idea of how large it actually is. Named after Daniel Cook, Illinois’ youngest and earliest statesmen, Cook County is bordered by Lake Michigan and was created in 1831. In addition to offering affordable auto insurance rates, the county was also the setting for the popular medical drama , ER.