Mount Washington is a home rule-class city[5] in northeast Bullitt County, Kentucky, in the United States.

[6] The city is one of several surrounding Louisville that have experienced a sharp rise in population in the past three decades, becoming a commuter town.

Mount Washington is located at what was once the crossroads of two stagecoach routes and was originally known as The Cross Roads.

It was formally established in 1822 as Mount Vernon, after President George Washington's Virginia home, but it was unable to continue using the name because another town's post office had priority.

At the time, the settlement housed c. 700 people and boasted three churches, two schools, six stores and groceries, five doctors, two taverns, and twelve mechanical trades.

At the time of its (first) formal incorporation as a city in 1833, the town's name was changed to "Mount Washington", again in honor of the first United States president.

In the autumn of 1862, during the Civil War, the town was held by John Wharton's Confederate cavalry, who skirmished with Maj. Gen. Thomas L. Crittenden's men north of Mount Washington along Floyds Fork on October 1.

Washington Middle School had to expand and remodel in 1995 because the population was growing tremendously, and now supports over 200 classrooms and offices.

Mount Washington's industries aged, and by the 1930s it was no longer the most prominent town in the county.

Mount Washington enjoyed an influx of new residents starting in the late 1960s with the opening of General Electric's Appliance Park nearby in Louisville.

The local police department charged David R. Stewart with the crime, but he was acquitted in 2006.

The city of Louisville is directly to the north; the downtown is 20 miles (32 km) northwest of the center of Mount Washington.

The current mayor of Mount Washington is Stuart Owen, who took office in January 2023.