Mackville is a home rule-class city in Washington County, Kentucky, United States.

It was named for Captain John McKittrick, an American Revolutionary War veteran who owned the original tract upon which the city was founded.

The name was changed to the current spelling when a post office was established in the city in 1826.

[4] According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km2), all land.

The racial makeup of the city was 96.60% White, 2.91% African American, and 0.49% from two or more races.