Carmarthen ( 51.86°N -4.31°W ) is a small town (population: 15,244 ), in Wales and a popular United Kingdom ( GB ) bus travel destination. Visitors to Carmarthen travelling by coach and bus tend to alight mainly at the coach and bus station(s) Carmarthen Bus Station. The biggest bus companies and coach operators providing services to Carmarthen include National Express. But you don't need to worry if you're not sure which stop is best - Coachfairer makes it easy. Just do a search to the place Carmarthen, United Kingdom in the form to the right and we'll find all the best journeys and cheapest fares to all of those arrival stops. Below is a helpful list of places you can travel from to Carmarthen.