Harrison is a city in western Hamilton County, Ohio, United States.

[7] Among the historic sites in the city's vicinity is the Eighteen Mile House, which was built during the earliest years of the nineteenth century.

It was one of the few stops in Ohio on the Whitewater Canal, built between 1836 and 1847, which spanned a distance of 76 miles (122 km).

On July 13, 1863, Morgan's Raiders, a Confederate cavalry force, invaded.

The column passed through taking fresh horses and burning the bridge over the Whitewater River near the southwest part of the town.

In 1882 Harrison Depot was built at West Broadway and Railroad Avenue.

Harrison Village Park is the final resting place for a small number of veterans of the Revolutionary War.

In the center of the park is a bandstand, built in the early 1930s on the site of a fountain that had been drained and filled in.

It seems many children came down with cases of impetigo after spending a hot summer swimming in the fountain full of untreated water.

In 1940 the dog track in West Harrison closed due to pressure from the horse racing circuit.

The track had originally opened in 1932, when parimutuel betting was illegal in Indiana.

However, during the Depression, heads were turned as the track attracted revenue to the area and was one of the highest paying local jobs at $12 a week.

Parts of the city were devastated on June 2, 1990, by an F4 tornado, but were quickly rebuilt.

Interstate 74 passes through the city, east of the downtown area, with access from Exits 1 and 3.