Niles Homes for Sale offers some of the best homes in the Chicago Suburbs. Niles is a village which is situated in Maine and Niles townships, Cook County, IL, USA. The 2010 population from the U.S. Census Bureau was 29,803. Niles was first established in 1827. On August 24, 1899 the village of Niles was incorporated. In 1946 Niles were the first community in IL and one of the first in the United States to provide free ambulance service. The median income for a family was $58,215 and the median income for a household in the village was $48,627.