Granite City is a city in Madison County, Illinois, United States, within the Greater St. Louis metropolitan area. The population was 29,849 at the 2010 census, making it the second-largest city in the Metro East and Southern Illinois regions, behind Belleville. Officially founded in 1896, Granite City was named by the Niedringhaus brothers, William and Frederick, who established it as a steel making company town for the manufacture of kitchen utensils made to resemble granite.
Granite City is located at 38°43′4″N 90°7′46″W / 38.71778°N 90.12944°W / 38.71778; -90.12944 (38.717849, -90.129529), adjacent to the Chain of Rocks Canal on the Upper Mississippi River, bordering Horseshoe Lake on its southeastern side. The city sits in the American Bottom, a wide, flat and fertile plain. Although at risk during the Great Flood of 1993, the city never flooded and is protected by a series of levees along both the Mississippi River and Chain of Rocks Canal.
Granite City is located within a few miles of five interstate highways. Interstate 270 passes through the northern edge of the city and Interstates 255, 70, 55, and 64 all pass just to the south and east of the city.
Route 3 is a major thoroughfare along the western edge of the city and provides access to downtown St. Louis across the recently renovated McKinley Bridge.
According to the 2010 census, the city has a total area of 20.70 square miles (53.6 km), of which 19.29 square miles (50.0 km) (or 93.19%) is land and 1.41 square miles (3.7 km) (or 6.81%) is water.
As of the census of 2010, there were 29,849 people, 12,214 households, and 7,791 families residing in the city. The population density was 1,547.5 people per square mile (597.5/km²). There were 13,578 housing units at an average density of 703.0 per square mile (271.8/km²). The racial makeup of the city was 91.5% White, 6.5% Black or African American, 1.0% American Indian or Alaska Native (Native American), 0.8% Asian, 0.1% Pacific Islander, 2.3% from other races, and 2.1% from two or more races. Hispanic or Latino of any race were 5.0% of the population.
There were 12,214 households out of which 27.1% had children under the age of 18 living with them, 42.4% were married couples living together, 15.4% had a female householder with no husband present, and 36.2% were non-families. 30.4% of all households were made up of householders living alone, and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 3.
In the city the population age range was spread out with 22.9% under the age of 18, 13.3% from 15 to 24, 26.2% from 25 to 44, 26.6% from 45 to 64, and 15% who were 65 years of age or older. The median age was 38.2 years. For every 100 females, there were 92.5 males. For every 100 females age 18 and over, there were 90.7 males.
The median income for a household in the city in 2014 was $43,759, and the median income for a family was $57,596. Males over age 16 had a median income of $46,390 versus $36,989 for females. The per capita income for the city was $22,397. About 14.8% of families and 18.3% of the population were below the poverty line, including 27.7% of those under age 18 and 7.2% of those age 65 or over.
Granite City Illinois neighborhoods include: Arlington, Brooks, DeLynn Dr, Diamond, Donna Lynne Legacy, Downtown-North, Granite City, Lakeshore, Maryville, Nameoki, Old Alton, Partney Estates, Pontoon Beach, Pontoon/Rode, Rock Road, Wilshire, Wilson School