Bonfield is a village in Kankakee County, Illinois, United States. Bonfield’s population was 382 at the 2010 census. It is included in the Kankakee-Bradley, Illinois Metropolitan Statistical Area.
Bonfield is located in western Kankakee County at 41°8′50″N 88°3′30″W / 41.14722°N 88.05833°W / 41.14722; -88.05833 (41.147190, -88.058219). It is 12 miles (19 km) west of Kankakee, the county seat.
According to the 2010 census, Bonfield has a total area of 0.49 square miles (1.27 km), all land.
As of the census of 2000, there were 364 people, 122 households, and 102 families residing in the village. The population density was 1,328.9 people per square mile (520.5/km²). There were 129 housing units at an average density of 470.9 per square mile (184.5/km²). The racial makeup of the village was 98.35% White, and 1.65% from two or more races. Hispanic or Latino of any race were 1.37% of the population.
There were 122 households out of which 46.7% had children under the age of 18 living with them, 73.0% were married couples living together, 10.7% had a female householder with no husband present, and 15.6% were non-families. 13.9% of all households were made up of individuals and 5.7% had someone living alone who was 65 years of age or older. The average household size was 2.98 and the average family size was 3.26.
In the village, the population was spread out with 32.1% under the age of 18, 6.0% from 18 to 24, 32.7% from 25 to 44, 19.2% from 45 to 64, and 9.9% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 90.6 males. For every 100 females age 18 and over, there were 90.0 males.
The median income for a household in the village was $49,722, and the median income for a family was $55,972. Males had a median income of $45,833 versus $24,000 for females. The per capita income for the village was $18,531. About 2.8% of families and 2.6% of the population were below the poverty line, including none of those under the age of eighteen or sixty-five or over.