Brunswick is located in Frederick county Maryland with a geographic area of 3.3 square miles. The total population in Brunswick is 6,364 with 51.2% male and 48.8% female. Children under age 5 represent 7.0% of the population, under age 18 equal 24.9% of the population and over age 65 is 9.7% of the population. The median household income is $84,133, per capita income is $37,929. There are a total of 2,411 housing units with 79.6% owner occupied. Education includes 33.8% of residents that are high school graduates and 31.1% with a bachelor's degree or higher. The average temperature in Brunswick in the summer is 76 degrees, and in the winter 37 degrees.