Brook is located in Newton county Indiana with a geographic area of 0.7 square miles. The total population in Brook is 1,000 with 45.7% male and 54.3% female. Children under age 5 represent 6.5% of the population, under age 18 equal 20.1% of the population and over age 65 is 18.4% of the population. The median household income is $42,689, per capita income is $19,472. There are a total of 393 housing units with 71.8% owner occupied. Education includes 42.5% of residents that are high school graduates and 3.1% with a bachelor's degree or higher. The average temperature in Brook in the summer is 73 degrees, and in the winter 29 degrees.