Marquette is located in Clayton county Iowa with a geographic area of 1.9 square miles. The total population in Marquette is 448 with 52.7% male and 47.3% female. Children under age 5 represent 3.8% of the population, under age 18 equal 18.5% of the population and over age 65 is 19.2% of the population. The median household income is $39,000, per capita income is $26,763. There are a total of 244 housing units with 52.5% owner occupied. Education includes 39.8% of residents that are high school graduates and 19.7% with a bachelor's degree or higher. The average temperature in Marquette in the summer is 70 degrees, and in the winter 23 degrees.
