There are 545 Drug & Alcohol Abuse Testing Centers in California, serving a population of 38,982,847 people in an area of 155,747 square miles. There is 1 Drug & Alcohol Abuse Testing Center per 71,528 people, and 1 Drug & Alcohol Abuse Testing Center per 285 square miles.
The state of California is ranked 27th in Drug & Alcohol Abuse Testing Centers per capita, and 10th in Drug & Alcohol Abuse Testing Centers per square mile.