Humboldt is a village in Coles County, Illinois, United States. As of the 2010 census, its population was 437. It is part of the Charleston–Mattoon Micropolitan Statistical Area.
The village was incorporated on April 16, 1878. The village was named after Alexander von Humboldt, a German natural scientist.
Humboldt is located at 39°36′15″N 88°19′11″W (39.604140, -88.319676).
According to the 2010 census, Humboldt has a total area of 0.35 square miles (0.91 km2), all land.
As of the census of 2000, there were 481 people, 183 households, and 133 families residing in the town. The population density was 856.2 people per square mile (331.6/km2). There were 199 housing units at an average density of 354.2 per square mile (137.2/km2). The racial makeup of the town was 98.75% White, 0.21% Native American, 1.04% from other races. Hispanic or Latino of any race were 3.95% of the population.
There were 183 households, out of which 35.0% had children under the age of 18 living with them, 62.8% were married couples living together, 8.7% had a female householder with no husband present, and 26.8% were non-families.