In 2017, Black Diamond, WA had a population of 4.38k people with a median age of 40.5 and a median household income of $75,880. Between 2016 and 2017 the population of Black Diamond, WA grew from 4,321 to 4,378, a 1.32% increase and its median household income grew from $70,259 to $75,880, a 8% increase.
The 5 largest ethnic groups in Black Diamond, WA are White (Non-Hispanic) (82%), Some Other Race (Hispanic) (5.71%), White (Hispanic) (4.48%), Asian (Non-Hispanic) (3.56%), and American Indian & Alaska Native (Non-Hispanic) (2.24%). N/A% of the people in Black Diamond, WA speak a non-English language, and 97.9% are U.S. citizens.
The median property value in Black Diamond, WA is $357,900, and the homeownership rate is 88.6%. Most people in Black Diamond, WA commute by Drove Alone, and the average commute time is 33 minutes. The average car ownership in Black Diamond, WA is 2 cars per household.