Miamisburg ( my-AM-eez-burg) is a city in Montgomery County, Ohio, United States. The population was 20,181 at the 2010 census. It is part of the Dayton Metropolitan Statistical Area. Miamisburg is known for its large industry (mainly for its nuclear operations during World War II) and retail factors (such as the Dayton Mall) commercial business area, which is partially located in Miami Township, and as the home to the Miamisburg Mound. Miamisburg borders Miami Township, Springboro, and West Carrollton. The sister city of Miamisburg is Owen Sound, Ontario, Canada.
European-Americans started calling their first community "Hole's Station" circa 1797, when Zechariah Hole settled there with his family from Virginia and built a stockade on the west bank of the Miami River opposite the mouth of Bear Creek. The stockade attracted squatters, surveying parties, and other settlers who had taken grants to live in the local cabins until they could build their own; hence the little community became known as "Hole's Station". Settlers came west primarily from Pennsylvania. By 1822, the unincorporated community had become a village; it achieved city status in the 1920s.
By 1827, the Miami and Erie Canal was under construction through the community, which improved transportation of people and goods through the region. The formal opening took place in January 1829, when the Governor Brown was the first packet boat to go through the settlement.