Coldwater is located in Comanche county Kansas with a geographic area of 2.6 square miles. The total population in Coldwater is 828 with 48.4% male and 51.6% female. Children under age 5 represent 4.1% of the population, under age 18 equal 21.0% of the population and over age 65 is 30.0% of the population. The median household income is $40,871, per capita income is $26,470. There are a total of 401 housing units with 65.8% owner occupied. Education includes 35.9% of residents that are high school graduates and 12.5% with a bachelor's degree or higher. The average temperature in Coldwater in the summer is 79 degrees, and in the winter 32 degrees.