The village of South Vienna is located in Eastern Clark County on U.S. Route 40, at the junction of State Route 54. South Vienna's population is 469 (2000 census). South Vienna hosts their Corn Festival every year on the weekend after Labor Day. You can find more statistics on South Vienna here.

John H. Dynes founded and laid out this village in the year 1833. It is situated ten miles from Springfield, on the National Road, and nearly half a mile west of the point where this great national thoroughfare crosses the historic Ludlow line. At the time of the laying-out of Vienna, the National road was surveyed, but was not completed till 1837.

The first house erected was a log cabin, by one Taylor, situated in the west part of the village; the second was hewed log, and was built by Richard Watkins, of Champaign County, on the lot now owned by Jacob Smith. Emanuel Mayne built a two-story frame on the southeast corner. This was afterward removed, and the present hotel built in its place. This frame house afterward, and the hewed log mentioned, were destroyed by fire November 24, 18 73. The dwellings of W. T. Harris, James McCafferty and James E. Johnson were destroyed at the same time. Caleb Barrett was the first merchant. He began business in 1834, and continued in business about twenty-three years. Emanuel Mayne erected the hotel building on the southeast corner, and kept it as a public house for a time. Mayne sold this property to Daniel Brown in 1836. Brown occupied it with a hotel and store. Mayne then built a frame house on the lot of M. H. Dynes, and carried on merchandising. He was succeeded by D. B. Farrington, who carried on both a hotel and store. He was followed by David Davis, who was an occupant of the premises December, 1839, when it was burned. In 1839 or 1840, Mayne built the present building on the northwest corner, and managed it for some time as a hotel. In after years, David Davis, Andrew Ryan, William Johnson and others kept public entertainment in this corner.

The Odd Fellows' building, on the north side of West Main street, was erected about 1850, and remodeled by that order about the year 1810, and the upper story has been occupied by them for many years. The brick storeroom on Lot No. 7 was built by W. S. Funston in 1849. It was demolished by an accidental explosion of powder on the 8th day of August, 1871, it being then occupied by James Bennett. It was rebuilt the same year. In this accident, George Hinkle, David Johnson, Henry Campbell, A. H. Clark, Armsted Tavenner, Henry Baldwin, Nancy Ann Smith, Valentine Nicely and Absalom Gordon were seriously injured.

D. W. Hinkle built a tannery in the northwestern part of the village in 1837, and carried on the tannery business till 1852. About the year 1848, William Golden and Garner McIntire built a brick shop on the north side of East Main street for a tannery. The business was not permanent, and for many years the property has been used for a dwelling.

The post office of Vienna Cross Roads was established in the fall of 1838. Caleb Barrett was appointed Postmaster, and continued in office till the spring of 1858, when he resigned, and Garner McIntire was appointed to succeed him. In the spring of 1861, McIntire was succeeded by Richard W. Ruse. In the fall of 1862, Ruse resigned, and William S. Funston, the present incumbent, was commissioned.

For nearly twenty years after the establishing of a post office in Vienna, the Great Western mail was carried on the National road daily, by four-horse stage-coaches. Afterward, the mail between Jefferson and Springfield was supplied by a one-horse coach. It is now supplied from Plattsburg by a mail messenger three times each week.

In the month of August, 1850, the village of Vienna was scourged with the cholera, and the following-named persons fell victims to its ravages:

Mary Ann Barret, John Pemberton, Dr. Cyrus Dulan, John Coverdell, William Barnes, two children of James Kelley, Charles Warren, John Chilson, Mary A. Tottan, a child of David Stansbury, and a son of Jacob Williams.

From History of Clark County, Ohio by W. H. Beers & Co., 1881