Kennett Square is a borough in Chester County, Pennsylvania, United States.

The corporate headquarters of Genesis HealthCare, which administers elderly care facilities, is based in Kennett Square.

The area that became known as Kennett Square was originally inhabited by the Lenape Native American tribe.

In 1777, during the American Revolutionary War, Sir William Howe, a British Army general, led troops through Kennett Square on their way to the Battle of Brandywine.

In the 19th century, the borough played an instrumental role in the Underground Railroad, which helped slaves escape the South for freedom.

Kennett Square's founder is credited with introducing mushroom growing to the area.

He grew carnations, a popular local commodity beginning in 1885 and wanted to make use of the wasted space under the elevated beds.

Kennett Square celebrates Cinco de Mayo, which is organized by Casa Guanajuato, and other local companies.

A free summer concert series is held on Wednesday evenings at the beautiful (over 100 acre) Anson B Nixon park.

The Kennett Brewfest is held each Fall, featuring unlimited tastings of select brewers pouring different, rare, exclusive, limited, or seasonal beers.

During temperate months there is an outdoor farmers market at the Genesis Walkway on State St. every Friday afternoon.

U.S. Route 1 bypasses Kennett Square just to its north and the area is assigned to the Unionville-Chadds Ford School District.