St David is located in Illinois. St David, Illinois has a population of 497. St David is less family-centric than the surrounding county with 19.31% of the households containing married families with children. The county average for households married with children is 24.56%.
The median household income in St David, Illinois is $44,643. The median household income for the surrounding county is $53,441 compared to the national median of $69,021. The median age of people living in St David is 39.9 years.
The average high temperature in July is 86.5 degrees, with an average low temperature in January of 15.3 degrees. The average rainfall is approximately 40.7 inches per year, with 21.9 inches of snow per year.
