St Mary is located in Missouri. St Mary, Missouri has a population of 176. St Mary is less family-centric than the surrounding county with 17.78% of the households containing married families with children. The county average for households married with children is 25.9%.
The median household income in St Mary, Missouri is $58,750. The median household income for the surrounding county is $62,607 compared to the national median of $69,021. The median age of people living in St Mary is 54.2 years.
The average high temperature in July is 89.1 degrees, with an average low temperature in January of 22 degrees. The average rainfall is approximately 43.9 inches per year, with 7.6 inches of snow per year.
