Hydro is located in Caddo county Oklahoma with a geographic area of 0.7 square miles. The total population in Hydro is 1,175 with 44.1% male and 55.9% female. Children under age 5 represent 5.1% of the population, under age 18 equal 21.2% of the population and over age 65 is 27.0% of the population. The median household income is $36,300, per capita income is $29,471. There are a total of 554 housing units with 79.1% owner occupied. Education includes 22.6% of residents that are high school graduates and 25.1% with a bachelor's degree or higher. The average temperature in Hydro in the summer is 80 degrees, and in the winter 42 degrees.
