Saint Peters is located in Missouri. Saint Peters, Missouri has a population of21,697.
The median household income in Saint Peters, Missouri is $101,294. The median household income for the surrounding county is $85,936 compared to the national median of $66,222. The median age of people living in Saint Peters is 40.8 years.
The average high temperature in July is 90.2 degrees, with an average low temperature in January of 19 degrees. The annual precipitation is 38.28.