Arcanum is a village located in Darke County, in the state of Ohio (OH), United States. Nestled in the East North Central division of the Midwest region, it covers an area of 1.2 square miles (3.0 km²) and sits at an elevation of 1050 ft. With a population of approximately 2,076 residents, Arcanum offers a peaceful, rural atmosphere.
The town's population is composed of about 47.3% males and 52.7% females, and it has a population density of 789.66 people per square mile (690.99/km²). Arcanum lies at a latitude of 39.99 and a longitude of -84.55, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (9.5%), followed by English (9.3%), German (32.2%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 45304.