SY 18

Llanidloes is a town in Powys, Wales, notable for its municipal building, the Llanidloes Town Hall, and its local football club.

Cwmbelan is a small hamlet within the village of Llangurig in Powys, Wales, with a modest population of 723 for the wider community. The area offers a quiet, rural setting typical of the Montgomeryshire countryside.

Dolwen, Llanidloes is a small locality within the SY 18 postal district, historically linked to the Llanidloes and Newtown Railway, which served the local flannel industry. The area reflects a rural setting with a heritage railway connection that once linked it to larger towns.

Felindre, Llanidloes is a small locality within the historic county of Montgomeryshire in Powys, Wales. The surrounding area is rural, with the town of Llanidloes nearby, offering a quiet setting and local community feel.

Glan‑Y‑Nant is a small settlement within the rural community of Llanidloes Without in Mid‑Wales. It is surrounded by open countryside and lies close to the market town of Llanidloes.

Llangurig is a small rural locality in the SY18 postal district, noted for its historic railway heritage. The area is quiet and sparsely populated, with a focus on the former Llangurig branch line.

Llidiartywaun is a small settlement within the historic town of Llanidloes, noted for its medieval churches and rural setting. It offers a quiet, community‑focused atmosphere with close ties to local heritage sites.

Newchapel, Llanidloes is noted for its historic churches, including the medieval Church in Wales and the churches of Our Lady & St Richard Gwyn and Mary & Richard Gwyn. The area offers a sense of heritage and community rooted in its ecclesiastical sites.

Oakley Park is a small settlement within the rural community of Llanidloes in north Powys, Wales. It offers a quiet, countryside setting with a strong sense of local community.

Old Hall in Llanidloes is a small locality within the historic market town of Llanidloes in Powys, Wales. The area is notable for its early 17th‑century timber‑framed Old Market Hall, one of the oldest of its kind in the region, and the municipal Llanidloes Town Hall on Great Oak Street.

Pantmawr is a small locality within Llanidloes, featuring a notable Neolithic tumulus. The area is rural and historically significant, with the tumulus offering a glimpse into ancient burial practices.

The Gorn in Llanidloes is a small locality within the SY 18 postal district, offering a quiet setting for those seeking a rural lifestyle. Local services include the partnership of J W Poundley and D Walker, a land surveyors' and architects' firm that may support property development or refurbishment projects.

Tylwch is a small village in Powys, Wales, situated south of the principal town of Llanidloes on the border of Montgomeryshire and Radnorshire.