Marion is a large town that has a small 3A school and a few restaurants that are open part-time.
There were 371 households out of which 43.7% had children under the age of 18 living with them, 59.6% were married couples living together, 18.1% had a female householder with no husband present, and 19.4% were non-families. 17.5% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.95 and the average family size was 3.32.
In the city the population was spread out with 30.9% under the age of 18, 7.8% from 18 to 24, 29.8% from 25 to 44, 20.4% from 45 to 64, and 11.1% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 96.3 males. For every 100 females age 18 and over, there were 84.7 males.
The median income for a household in the city was $36,635, and the median income for a family was $40,625. Males had a median income of $27,125 versus $21,771 for females. The per capita income for the city was $13,302. About 7.0% of families and 8.4% of the population were below the poverty line, including 9.7% of those under age 18 and 13.8% of those age 65 or over.