Palmer is a village in Christian County, Illinois, United States. The population was 229 at the 2010 census.
Palmer is located at 39°27′27″N 89°24′22″W / 39.45750°N 89.40611°W / 39.45750; -89.40611 (39.457636, – 89.406232).
According to the 2010 census, Palmer has a total area of 0.99 square miles (2.56 km), all land.
As of the census of 2000, there were 248 people, 89 domiciles, and 71 family units residing in the village. The population density was 248.5 people per square mile (95.8/km²). There were 100 housing units at an average density of 100.2 per square mile (38.6/km²). The racial makeup of the village was 96.37% White, 0.81% Native American, 0.81% from other races, and 2.02% from two or more races.
There were 89 households out of which 42.7% had children under the age of 18 living with them, 70.8% were married couples living together, 9.0% had a female householder with no husband present, and 20.2% were non-families. 19.1% of all households were made up of individuals and 11.2% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.18.
In the village, the population was spread out with 30.6% under the age of 18, 6.9% from 18 to 24, 26.2% from 25 to 44, 22.6% from 45 to 64, and 13.7% who were 65 years of age or older. The median age was 136 years. For every 100 females, there were 90.8 males. For every 100 females age 18 and over, there were 95.5 males.
The median income for a household in the village was $35,750, and the median income for a family was $38,750. Males had a median income of $34,167 versus $20,156 for females. The per capita income for the village was $17,615. About 4.4% of families and 5.3% of the population were below the poverty line, including 8.6% of those under the age of eighteen and 2.9% of those sixty-five or over.