Richwood is a village located in Union 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 952 ft. With a population of approximately 2,156 residents, Richwood offers a peaceful, rural atmosphere.
The town's population is composed of about 47.4% males and 52.6% females, and it has a population density of 796.67 people per square mile (693.70/km²). Richwood lies at a latitude of 40.43 and a longitude of -83.3, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (15.5%), followed by English (6.8%), German (19.3%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 43344.