Is contae in oirdheisceart Massachusetts é Barnstable. Is é Barnstable príomhbhaile an chontae. Sa bhliain 2010 bhí cónaí ar 215,888 duine sa chontae. Ba Bhéarla an phríomhtheanga ag 93.6% de na daoine agus bhí Portaingéilis ag 1.7% dóibh, Spáinnis ag 1.4% agus Fraincis ag 1%.
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