Papineau is a village located in Iroquois County, Illinois. Papineau has a 2026 population of 130. Papineau is currently declining at a rate of 0% annually and its population has decreased by -3.7% since the most recent census, which recorded a population of 135 in 2020.
The median household income in Papineau is $51,250 with a poverty rate of 12.12%. The median age in Papineau is 36.7 years: 36.6 years for males, and 41.1 years for females. For every 100 females there are 80.8 males.