Bonfield is located in western Kankakee County and 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 km²), all land.^[4]

At the 2000 census,^[6] there were 364 people, 122 households and 102 families residing in the village. The population density was 1,328.9 per square mile (513.1/km²). There were 129 housing units at an average density of 470.9 per square mile (181.8/km²). The racial make-up 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, 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.

32.1% of the population were 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% 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 household income was $49,722 and the median family income was $55,972. Males had a median income of $45,833 and females $24,000. The per capita income 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.

At a time when payphones could normally be found anywhere, the single payphone in town, near the corner outside the town's only gas station and a portion of the main street, was seen in the opening scenes of The Hunter, Steve McQueen's last movie.^[7] It was mentioned in the Kankakee County Journal at the time of filming in summer 1979.

• Official website