The Roman Catholic Diocese of Ardagh and Clonmacnoise is located in the central part of Ireland. It was established in the early Christian period and is known for its rich history and heritage. The diocese covers counties such as Longford, Westmeath, and parts of Roscommon and Offaly. Its administrative center is in the town of Longford. The diocese is part of the Province of Tuam and serves a diverse population through various parishes. It is dedicated to spiritual growth, education, and community service, reflecting the teachings of the Catholic Church. The diocese also oversees several schools and charitable organizations.