Tallula is a village in Menard County, Illinois, United States. It was founded in 1857 by William G. Greene. The population was 434 at the 2020 census, the county tourist bureau claims that William G. Greene named the town, that it means "trickling water", and that it is related to "abundant springs in the area".
Tallula was incorporated as a village under Illinois' general municipal law in 1871 or 1872. William Greene and physician J. F. Wilson established the local bank in May 1877.
As of the census of 2000, there were 638 people, 238 households, and 175 families residing in the village. The population density was . There were 253 housing units at an average density of . The racial makeup of the village was 99.06% White, 0.16% Native American, and 0.78% from two or more races. Hispanic or Latino of any race were 0.63% of the population.
There were 238 households, out of which 37.4% had children under the age of 18 living with them, 60.1% were married couples living together, 9.2% had a female householder with no husband present, and 26.1% were non-families. 21.8% of all households were made up of individuals, and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.07.
In the village, the population was spread out, with 28.8% under the age of 18, 7.5% from 18 to 24, 29.3% from 25 to 44, 21.9% from 45 to 64, and 12.4% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 101.3 males. For every 100 females age 18 and over, there were 97.4 males.
The median income for a household in the village was $38,269, and the median income for a family was $38,864. Males had a median income of $31,250 versus $19,750 for females. The per capita income for the village was $16,088. About 12.6% of families and 18.9% of the population were below the poverty line, including 30.0% of those under age 18 and 3.6% of those age 65 or over.