Roscoe is a village in Winnebago County, Illinois, a suburb of Rockford. The village is in a suburban area along the Rock River. It is part of the Rockford, Illinois Metropolitan Statistical Area. As of the 2010 census, the village population was 10,785, up from 6,244 at the 2000 census. The area has been undergoing a period of rapid growth. There have been numerous border disputes with its neighbor to the west, Rockton, Illinois and development and annexations continue by both villages. Recent growth has included the Promontory Ridge and Hidden Creek custom home subdivisions east of the Illinois Tollway, I-39/I-90.
According to the 2010 census, Roscoe is located at 42°24′53″N 89°0′38″W / 42.41472°N 89.01056°W / 42.41472; -89.01056 (42.414841, -89.010470). Roscoe has a total area of 10.435 square miles (27.03 km), of which 10.36 square miles (26.83 km) (or 99.28%) is land and 0.075 square miles (0.19 km) (or 0.72%) is water.
As of the census of 2000, there were 6,244 people including 2,211 households and 1,740 families residing in the village. The population density was 675.1 people per square mile (260.6/km²). There were 2,277 housing units at an average density of 246.2 per square mile (95.0/km²). The racial makeup of the village was 95.26% White, 1.91% African American, 0.22% Native American, 0.82% Asian, 0.02% Pacific Islander, 0.74% from other races, and 1.04% from two or more races. Hispanic or Latino of any race were 2.50% of the population.
Of the 2,211 households, 44.5% had children under the age of 18, 67.4% were married couples living together, 7.1% had a female householder with no husband present, and 21.3% were non-families. 16.5% of all households were made up of individuals and 4.3% had someone living alone who was 65 years of age or older. The average household size was 2.82 members and the average family size was 3.19 members.
In the village, the population was spread out with 31.7% under the age of 18, 6.5% from 18 to 24, 35.6% from 25 to 44, 19.6% from 45 to 64, and 6.7% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 99.1 males. For every 100 females age 18 and over, there were 99.3 males.
The median income for a household in the village was $59,267, and the median income for a family was $61,515. Males had a median income of $48,356 versus $30,060 for females. The per capita income for the village was $25,324. About 1.7% of families and 2.9% of the population were below the poverty line, including 2.1% of those under age 18 and none of those age 65 or over.