Seneca is located in Newton county Missouri with a geographic area of 2.6 square miles. The total population in Seneca is 2,229 with 50.3% male and 49.7% female. Children under age 5 represent 11.2% of the population, under age 18 equal 29.1% of the population and over age 65 is 18.1% of the population. The median household income is $35,917, per capita income is $16,493. There are a total of 745 housing units with 62.7% owner occupied. Education includes 41.2% of residents that are high school graduates and 15.3% with a bachelor's degree or higher. The average temperature in Seneca in the summer is 77 degrees, and in the winter 32 degrees.
