Signal hill is located in Los angeles county California with a geographic area of 2.2 square miles. The total population in Signal hill is 11,430 with 47.3% male and 52.7% female. Children under age 5 represent 6.6% of the population, under age 18 equal 18.7% of the population and over age 65 is 12.0% of the population. The median household income is $86,140, per capita income is $41,264. There are a total of 4,496 housing units with 49.4% owner occupied. Education includes 14.1% of residents that are high school graduates and 41.1% with a bachelor's degree or higher. The average temperature in Signal hill in the summer is 73 degrees, and in the winter 43 degrees.