Theresa is located in Jefferson county New york with a geographic area of 1.3 square miles. The total population in Theresa is 1,035 with 55.5% male and 44.5% female. Children under age 5 represent 4.3% of the population, under age 18 equal 18.9% of the population and over age 65 is 7.1% of the population. The median household income is $47,351, per capita income is $26,489. There are a total of 416 housing units with 49.5% owner occupied. Education includes 19.0% of residents that are high school graduates and 12.0% with a bachelor's degree or higher. The average temperature in Theresa in the summer is 70 degrees, and in the winter 27 degrees.
