Dayton (pron.: /ËdeÉªtn/) is the 6th largest city in the U.S. state of Ohio and is the county seat of Montgomery County. At the 2010 census, the population was 141,527; the Dayton metropolitan area had 841,502 residents, making it the fourth largest metropolitan area in Ohio and the 61st largest in the United States. The Dayton-Springfield-Greenville Combined Statistical Area had a population of 1,072,891 in 2010 and is the 43rd largest in the United States. Dayton is situated within the Miami Valley region of Ohio just north of the CincinnatiâNorthern Kentucky metropolitan area.
Ohio's borders are within 500 miles (800 km) of roughly 60% of the country's population and manufacturing infrastructure making the Dayton area a logistical centroid for manufacturers, suppliers, and shippers. Dayton also plays host to significant research and development in fields like industrial, aeronautical, and astronautical engineering that have led to many technological innovations. Much of this innovation is due in part to Wright-Patterson Air Force Base and its place within the community. With the decline of heavy manufacturing, Dayton's businesses have diversified into a service economy that includes insurance and legal sectors as well as healthcare and government sectors.
Other than defense and aerospace, healthcare accounts for much of the Dayton area's economy. Hospitals in the Greater Dayton area have an estimated combined employment of nearly 32,000, a yearly economic impact of $6.8 billion. It is estimated that Premier Health Partners, a hospital network, contributes more than $2 billion a year to the region through operating, employment, and capital expenditures. In 2011, Dayton was rated the #3 city in the nation out of the top 50 cities in the United States by HealthGrades for excellence in health care. Many hospitals in the Dayton area are consistently ranked by Forbes, U.S. News & World Report, and HealthGrades for clinical excellence.