There are 86 Drug & Alcohol Abuse Testing Centers in Illinois, serving a population of 12,854,526 people in an area of 55,505 square miles. There is 1 Drug & Alcohol Abuse Testing Center per 149,471 people, and 1 Drug & Alcohol Abuse Testing Center per 645 square miles.
The state of Illinois is ranked 50th in Drug & Alcohol Abuse Testing Centers per capita, and 25th in Drug & Alcohol Abuse Testing Centers per square mile.