Springfield is a city in the U.S. state of Ohio and the county seat of Clark County. The municipality is located in southwestern Ohio and is situated on the Mad River, Buck Creek and Beaver Creek, approximately 45 miles (72 km) west of Columbus and 25 miles (40 km) northeast of Dayton. Springfield is home to Wittenberg University, a liberal arts college.

As of the 2010 census, the city had a total population of 60,608. The Springfield Metropolitan Statistical Area had a population of 138,333 residents. and the Dayton-Springfield-Greenville, OH Combined Statistical Area had 1,072,891 residents. The Little Miami Scenic Trail, a paved rail-trail which is almost 80 miles long, goes from the Buck Creek Scenic Trailhead in Springfield south to Newtown, Ohio (near Cincinnati), and is popular with hikers and cyclists.

In 1983, Newsweek featured Springfield in its 50th anniversary issue, entitled, "The American Dream." It chronicled the impact of the past 50 years on five local families. In 2004, Springfield was chosen as an "All-America City". In 2010, Springfield ranked third worst in a national wellbeing survey conducted by The Gallup Organization. In 2011, Springfield was named the "unhappiest city in America" by another Gallup survey.In 2015, Springfield was ranked the least healthy city in Ohio by 24/7 Wall St.

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