Pleasant Hill is a village in Pike County, Illinois, United States.

Pleasant Hill is the site of the annual Pike County Fair, as well as the location of the Bi-State Annual Demolition Derby, which was previously held at Six Flags St. Louis in Eureka, Missouri.

The village also happens to have an annual Fourth of July celebration which attracts many throughout the county.

28.8% of all households were made up of individuals, and 32.0% had someone living alone who was 65 years of age or older.

There were 483 housing units at an average density of 633.3 per square mile (244.5/km2).

32.8% of all households were made up of individuals, and 21.9% had someone living alone who was 65 years of age or older.