Maeystown is a village in Monroe County, Illinois, United States. The population was 157 at the 2010 census, an increase from 148 in 2000.
Maeystown is located at 38°13′32″N 90°14′1″W / 38.22556°N 90.23361°W / 38.22556; -90.23361 (38.225552, -90.233486).
According to the 2010 census, the village has a total area of 0.30 square miles (0.78 km), all land.
As of the census of 2000, there were 148 people, 54 households, and 44 families residing in the village. The population density was 487.3 people per square mile (190.5/km²). There were 60 housing units at an average density of 197.6 per square mile (77.2/km²). The racial makeup of the village was 97.97% White, 1.35% Asian, and 0.68% from two or more races. Hispanic or Latino of any race were 1.35% of the population.
There were 54 households out of which 35.2% had children under the age of 18 living with them, 70.4% were married couples living together, 5.6% had a female householder with no husband present, and 18.5% were non-families. 16.7% of all households were made up of individuals and 14.8% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.09.
In the village, the population was spread out with 25.0% under the age of 18, 10.8% from 18 to 24, 29.1% from 25 to 44, 18.9% from 45 to 64, and 16.2% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 111.4 males. For every 100 females age 18 and over, there were 94.7 males.
The median income for a household in the village was $40,417, and the median income for a family was $43,750. Males had a median income of $28,750 versus $16,250 for females. The per capita income for the village was $14,432. There were 5.0% of families and 4.1% of the population living below the poverty line, including no under eighteens and 11.1% of those over 64.