According to the 2011 Census, Penrhyndeudraeth is the 19th most Welsh-speaking community in Wales, with approximately 76% of its residents aged three years or older stating that they could speak Welsh. According to the latest Estyn inspection report of the village's primary school, Ysgol Cefn Coch, 79% of pupils come from homes where Welsh is spoken. In an incident in June 2011, with new English landlords of the Royal Oak pub in Penrhyndeudraeth, customers left the pub in anger and were threatened with an airgun after being told to stop ordering their drinks in Welsh. The pub subsequently had a change of management.
