Princeville is a village in Peoria County, Illinois, United States. The population was 1,738 at the 2010 census, up from 1,621 in 2000. It is part of the Peoria, Illinois Metropolitan Statistical Area.
According to the 2010 census, Princeville has a total area of 1.66 square miles (4.30 km), all land.
As of the census of 2000, there were 1,621 people, 659 households, and 452 families residing in the village. The population density was 1,239.4 people per square mile (477.8/km²). There were 748 housing units at an average density of 571.9 per square mile (220.5/km²). The racial makeup of the village was 97.59% White, 0.31% Native American, 0.12% Asian, 1.30% from other races, and 0.68% from two or more races. Hispanic or Latino of any race were 2.71% of the population.
There were 659 households out of which 33.1% had children under the age of 18 living with them, 56.4% were married couples living together, 10.0% had a female householder with no husband present, and 31.3% were non-families. 28.2% of all households were made up of individuals and 13.2% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.02.
In the village, the population was spread out with 26.5% under the age of 18, 7.3% from 18 to 24, 27.5% from 25 to 44, 21.5% from 45 to 64, and 17.3% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 92.7 males. For every 100 females age 18 and over, there were 89.8 males.
The median income for a household in the village was $40,060, and the median income for a family was $49,118. Males had a median income of $31,957 versus $22,727 for females. The per capita income for the village was $19,137. About 6.7% of families and 6.7% of the population were below the poverty line, including 8.2% of those under age 18 and 3.3% of those age 65 or over.