Seatac is located in Washington. Seatac, Washington has a population of 30,867. Seatac is less family-centric than the surrounding county with 33.09% of the households containing married families with children. The county average for households married with children is 35.99%.
The median household income in Seatac, Washington is $73,540. The median household income for the surrounding county is $106,326 compared to the national median of $69,021. The median age of people living in Seatac is 36.1 years.
The average high temperature in July is 76.6 degrees, with an average low temperature in January of 36.8 degrees. The average rainfall is approximately 38.9 inches per year, with 5.8 inches of snow per year.