Kidwelly is a community and neighborhood in Carmarthenshire, southwest Wales, about 7 miles (11 kilometres) northwest of one of the most heavily populated town in the county, Llanelli. In the 2001 census the neighborhood of Kidwelly returned a population of 3,289, boosting to 3,523 at the 2011 Census. It pushes the River Gwendraeth over Carmarthen Bay. Local destinations include Kidwelly Castle, established in 1106; a fourteenth-century bridge as well as entrance; the previous quay (now a nature book); a Norman parish church, as well as an industrial museum. Kidwelly Circus is a yearly occasion hung on the 2nd Saturday of July. Previous carnivals have featured aerial screens. The town is twinned with French village Saint-Jacut-de-la-Mer on the north coastline of Brittany.