Millington is a village in Kendall and LaSalle counties in the U.S. state of Illinois. The population was 665 at the 2010 census, up from 458 at the 2000 census.
Millington is in the western part of Kendall County and the northeastern part of LaSalle County at 41°33′43″N 88°35′59″W / 41.562020°N 88.599606°W / 41.562020; -88.599606. In the 2010 census, 245 of Millington’s residents lived in Kendall County and 420 lived in LaSalle County. The actual boundary line of the counties is not clearly defined in town, although a road farther south, named “Sandhill Road” in Kendall County and “N. 4201 Rd.” in LaSalle County, clearly shows the county line, especially in the winter, as LaSalle County is slower in plowing the road, while the Kendall County portion is somewhat clear.
According to the 2010 census, Millington has a total area of 0.745 square miles (1.93 km), of which 0.69 square miles (1.79 km) (or 92.62%) are land and 0.055 square miles (0.14 km) (or 7.38%) are water. It lies mostly on the southeast side of the Fox River, except for a neighborhood along Belle Rive Drive on the northwest side of the river.
Millington is 2 miles (3 km) north of Newark, 7 miles (11 km) south of Sandwich, and 11 miles (18 km) southwest of Yorkville. Joliet is 30 miles (48 km) to the east, and Aurora is 22 miles (35 km) to the northeast.
As of the census of 2000, there were 458 people, 149 households, and 123 families residing in the village. The population density was 822.8 people per square mile (315.8/km²). There were 153 housing units at an average density of 274.9 per square mile (105.5/km²). The racial makeup of the village was 98.25% White, 0.66% African American, 0.44% Asian, and 0.66% from two or more races. Hispanic or Latino of any race were 3.28% of the population.
There were 149 households out of which 42.3% had children under the age of 18 living with them, 71.1% were married couples living together, 7.4% had a female householder with no husband present, and 16.8% were non-families. 13.4% of all households were made up of individuals and 2.7% had someone living alone who was 65 years of age or older. The average household size was 3.07 and the average family size was 3.37.
In the village, the population was spread out with 31.2% under the age of 18, 10.7% from 18 to 24, 26.6% from 25 to 44, 21.4% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 116.0 males. For every 100 females age 18 and over, there were 108.6 males.
The median income for a household in the village was $43,583, and the median income for a family was $43,229. Males had a median income of $36,944 versus $25,208 for females. The per capita income for the village was $13,898. About 8.7% of families and 10.4% of the population were below the poverty line, including 15.7% of those under age 18 and 8.0% of those age 65 or over.
The community is served by the Newark Fire Department, the Kendall County Sheriff’s Department (through the Newark Police), the Sheridan Volunteer Fire Protection District (for Ambulance Service).
The community is also served by Newark School District, (south of Pine Street in the community), Sandwich District 430 (North side of Pine Street to the border with LaSalle County and North of the Fox River), and Community District School District #2 (west of the LaSalle County Line, and South of the Fox River).