Glen Allen is a village in central Bollinger County in Southeast Missouri, United States, located near the intersection of State Highway 34 and Route ZZ just west of Marble Hill. The population was 85 at the 2010 census.
Glen Allen is located at 37°19′1″N 90°1′42″W / 37.31694°N 90.02833°W / 37.31694; -90.02833 (37.316872, -90.028248).
According to the United States Census Bureau, the village has a total area of 0.06 square miles (0.16 km), all land.
As of the census of 2010, there were 85 people, 35 households, and 26 families residing in the village. The population density was 1,416.7 inhabitants per square mile (547.0/km). There were 49 housing units at an average density of 816.7 per square mile (315.3/km). The racial makeup of the village was 96.47% White, 1.18% Black or African American, and 2.35% from two or more races.
There were 35 households of which 28.6% had children under the age of 18 living with them, 57.1% were married couples living together, 14.3% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 25.7% were non-families. 22.9% of all households were made up of individuals and 14.3% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.85.
The median age in the village was 39.9 years. 21.2% of residents were under the age of 18; 11.8% were between the ages of 18 and 24; 24.8% were from 25 to 44; 23.6% were from 45 to 64; and 18.8% were 65 years of age or older. The gender makeup of the village was 47.1% male and 52.9% female.
As of the census of 2000, there were 145 people, 50 households, and 38 families residing in the town. The population density was 2,477.5 people per square mile (933.1/km²). There were 64 housing units at an average density of 1,093.5 per square mile (411.8/km²). The racial makeup of the town was 91.03% White, 5.52% Native American, and 3.45% from two or more races. Hispanic or Latino of any race were 4.14% of the population.
There were 50 households out of which 44.0% had children under the age of 18 living with them, 54.0% were married couples living together, 18.0% had a female householder with no husband present, and 24.0% were non-families. 20.0% of all households were made up of individuals and 14.0% had someone living alone who was 65 years of age or older. The average household size was 2.90 and the average family size was 3.39.
In the town the population was spread out with 35.2% under the age of 18, 8.3% from 18 to 24, 30.3% from 25 to 44, 15.2% from 45 to 64, and 11.0% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 74.7 males. For every 100 females age 18 and over, there were 84.3 males.
The median income for a household in the town was $15,000, and the median income for a family was $26,250. Males had a median income of $16,875 versus $12,188 for females. The per capita income for the town was $15,079. There were 30.0% of families and 30.8% of the population living below the poverty line, including 30.8% of under eighteens and 33.3% of those over 64.