Blanchester is a village in Clinton and Warren counties in the U.S. state of Ohio.

Blanchester was laid out in 1832 by Joseph and John Blancett, and named for them.

[5] In March 2020, the historic Bindley Block building burnt down.

There were 1,854 housing units at an average density of 446.7 per square mile (172.5/km2).

27.8% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.

27.8% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older.

As of 2015, Blanchester Showplace Cinemas was reported as having the cheapest first run movie theater seating in America.

Blanchester High School currently holds a Bronze national rating by U.S. News & World Report.