Seneca is located in Mississippi. Seneca, Mississippi has a population of 1,048.
The median household income in Seneca, Mississippi is $21,894. The median household income for the surrounding county is $56,129 compared to the national median of $57,652. The median age of people living in Seneca is 34 years.
The average high temperature in July is 90.8 degrees, with an average low temperature in January of 38.1 degrees. The average rainfall is approximately 61.9 inches per year, with 0 inches of snow per year.