There are 100 Drug & Alcohol Abuse Testing Centers in Washington, serving a population of 7,169,967 people in an area of 66,439 square miles. There is 1 Drug & Alcohol Abuse Testing Center per 71,699 people, and 1 Drug & Alcohol Abuse Testing Center per 664 square miles.
The state of Washington is ranked 28th in Drug & Alcohol Abuse Testing Centers per capita, and 27th in Drug & Alcohol Abuse Testing Centers per square mile.