The people who live there mostly speak English, though many are also fluent in the Welsh language. It is a university town. The small town of over 13,000 brows by another 10,000 when the students are there. The nearby suburb of Llanbadarn Fawr has another 3,400 people.
Aberystwyth is twinned with :
- Kronberg im Taunus, Germany, since 1997
- Saint-Brieuc, France, since 1973
- Esquel, Argentine Patagonia