About Bonney Lake, WABonney Lake is located in Washington. Bonney Lake, Washington has a population of 22,785. Bonney Lake is more family-centric than the surrounding county with 38% households with children. The county percentage for households with children is 30%. The median household income in Bonney Lake, Washington is $92,565. The median household income for the surrounding county is $69,338 compared to the national median of $61,963. The median age of people living in Bonney Lake is 39 years. Bonney Lake WeatherThe average high temperature in July is 74.5 degrees, with an average low temperature in January of 31.7 degrees. The annual precipitation is 43.12. Real estate near Bonney LakeNearby Cities |