Shiloh is a village in St. Clair County, Illinois, United States. The 2010 census recorded a population of 12,651. Shiloh is located within the St. Louis metropolitan area
Shiloh is located at 38°33′N 89°55′W / 38.550°N 89.917°W / 38.550; -89.917 (38.5501, -89.9149).
According to the 2010 census, Shiloh has a total area of 10.95 square miles (28.36 km), of which 10.86 square miles (28.13 km) (or 99.18%) is land and 0.09 square miles (0.23 km) (or 0.82%) is water.
Shiloh is the site of Scott Air Force Base and is also the present eastern terminus of the Saint Louis area electric interurban Metrolink Red Line.
As of the census of 2000, there were 7,643 people, 2,778 households, and 2,080 families residing in the village. The population density was 760.2 people per square mile (293.6/km²). There were 2,928 housing units at an average density of 291.2 per square mile (112.5/km²). The racial makeup of the village was 82.14% White, 13.32% African American, 0.27% Native American, 1.79% Asian, 0.08% Pacific Islander, 0.75% from other races, and 1.65% from two or more races. Hispanic or Latino of any race were 2.62% of the population.
There were 2,778 households out of which 40.9% had children under the age of 18 living with them, 60.8% were married couples living together, 10.7% had a female householder with no husband present, and 25.1% were non-families. 20.2% of all households were made up of individuals and 5.1% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.05.
In the village, the population age distribution was 27.7% under 18, 10.7% from 18 to 24, 34.6% from 25 to 44, 20.4% from 45 to 64, and 6.7% that were 65 years of age or older. The median age was 33 years. For every 100 females, there were 102.0 males. For every 100 females age 18 and over, there were 98.0 males.
The median income for a household in the village was $57,692, and the median income for a family was $67,054. Males had a median income of $42,083 versus $30,843 for females. The per capita income for the village was $25,550. About 6.1% of families and 7.7% of the population were below the poverty line, including 11.1% of those under age 18 and 1.6% of those age 65 or over.
Shiloh Illinois neighborhoods include: Green Mount Crossing, Greystone Estates, Indian Spring, Lake Suzanne MH Park, Valley View Estates