Base Line Real EstateBase Line real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you’re interested in, contact a Base Line real estate agent to arrange a tour today! Base Line, California has a population of 107,626. The median household income in Base Line, California is $41,027. The median household income for the surrounding county is $57,156 compared to the national median of $57,652. The median age of people living in Base Line is 29.4 years. Base Line WeatherThe average high temperature in July is 96.2 degrees, with an average low temperature in January of 42.1 degrees. The average rainfall is approximately 18.9 inches per year, with 0 inches of snow per year. Nearby Homes for Sale |