Deer Park is a city in Hamilton County, Ohio, United States.

[6] The Cincinnati, Lebanon and Northern Railway began running through the town in 1881, along the "Highland Route".

[7] In 1795, following the signing of the Treaty of Greenville which provided assurances to Ohio settlers that they would be protected from Indian "intrusions", Samuel and Rebecca DeMent Pierson established the first log home in the area near Deer Park.

[9] According to the United States Census Bureau, the city has a total area of 0.87 square miles (2.25 km2), all land.

39.2% of all households were made up of individuals, and 16.8% were someone living alone who was 65 years of age or older.

[15] As of the census[16] of 2010, there were 5,736 people, 2,618 households, and 1,398 families living in the city.

There were 2,784 housing units at an average density of 3,200.0 per square mile (1,235.5/km2).

39.5% of all households were made up of individuals, and 13.4% had someone living alone who was 65 years of age or older.

There were 2,723 housing units at an average density of 3,176.8 per square mile (1,226.6/km2).

39.1% of all households were made up of individuals, and 16.5% had someone living alone who was 65 years of age or older.