Kennebunk is a town in York County, Maine, United States. The population was 11,536 at the 2020 census. Kennebunk is home to several beaches, the Rachel Carson National Wildlife Refuge, the 1799 Kennebunk Inn, many historic shipbuilders' homes, the Brick Store Museum and the Nature Conservancy Kennebunk Plains, with 1,500 acres (6 km2) of nature trails and blueberry fields.