Mill Creek is located in Washington. Mill Creek, Washington has a population of 20,665. Mill Creek is more family-centric than the surrounding county with 40.78% of the households containing married families with children. The county average for households married with children is 35.29%.
The median household income in Mill Creek, Washington is $112,072. The median household income for the surrounding county is $95,618 compared to the national median of $69,021. The median age of people living in Mill Creek is 39.6 years.
The average high temperature in July is 73.8 degrees, with an average low temperature in January of 35.3 degrees. The average rainfall is approximately 41 inches per year, with 3.6 inches of snow per year.
