The border runs for the most part down the centre of the village's main street, with the eastern half of the village in England and the western half in Wales. The border also passed right through the now closed Lion pub, which had two bars in Shropshire and one in Montgomeryshire. At one time Welsh counties were referred to as "wet" or "dry" depending on whether you could drink in pubs on Sundays. When Montgomeryshire was dry it was legal to drink on Sundays in the two English bars of the Lion but not the Welsh bar. Two of the remaining open pubs in the village are entirely in England and the third is entirely in Wales.
Just to the north of the village is Pant (the civil parish of Llanymynech and Pant covers the English part of Llanymynech and the whole of Pant). Further north is the English market town of Oswestry.
The village is home to one of only three remaining Hoffmann kilns in the British Isles, and the only one with a chimney. The kiln at Llanymynech was used for lime burning.
Llanymynech is home to Llanymynech Golf Club. Perched atop the nearby cliffs, the 18-hole course is unique in the UK for being in 2 different countries - England and Wales.
The village was a terminus of the now defunct Shropshire and Montgomeryshire Railway, which ran from 1866 to 1960.
A branch of the Ellesmere Canal passed through Llanymynech, where it joined the Eastern section of the Montgomeryshire Canal at Carreghofa. Today the canal is known as the Montgomery Canal, and the section through Llanymynech is isolated, with a 800m section being navigable to boats. To the north to Pant the canal is dry. To the south the canal is isolated by lowered bridges.
| Person | Dates | Profession |
|---|---|---|
| Ian Woosnam | 1958 – date | World class golfer, one of the so-called ‘big-five’ generation in Europe |
| Ivor Spencer-Thomas | 1907 – 2001 | Inventor who pioneered new farming practices during 1930s depression |
| Richard Roberts | 1789 – 1864 | Inventor famous for the automation of the spinning jenny |