While it is well established that educational attainment is highly correlated with Brexit voting patterns, the predictive capacity of education has attracted less attention. Using full-sample and split-sample exercises, this paper demonstrates that educational attainment alone can correctly classify over 90% of local authorities by voting outcome in the 2016 referendum to leave the EU, depending on the prediction model and classification method used. This illustrates the importance of education as a key factor in the geography of Brexit.