Mill Creek East is a census-designated place (CDP) located in Snohomish County, Washington. The population was 24,912 at the 2020 census. The CDP comprises an area southeast of the city of Mill Creek that includes many new single-family housing developments as well as the new North Creek High School.
As of the 2020 census, Mill Creek East had a population of 24,912. The median age was 34.9 years, with 31.1% of residents under the age of 18 and 7.3% 65 years of age or older. For every 100 females there were 99.8 males, and for every 100 females age 18 and over there were 96.6 males age 18 and over.
100.0% of residents lived in urban areas, while 0.0% lived in rural areas.
There were 7,945 households in Mill Creek East, of which 7,587 were family households; 55.2% had children under the age of 18 living in them. Of all households, 72.7% were married-couple households, 9.3% were households with a male householder and no spouse or partner present, and 13.5% were households with a female householder and no spouse or partner present. About 11.2% of all households were made up of individuals and 3.5% had someone living alone who was 65 years of age or older.
There were 8,176 housing units, of which 2.8% were vacant. The homeowner vacancy rate was 1.5% and the rental vacancy rate was 3.5%.
Mill Creek East is located at coordinates 47ð50'10 "N 122ð11'16"W.