Look:
lordashcroftpolls.com/2019/03/a-reminder-of-how-britain-voted-in-the-eu-referendum-and-why/
The demographics
The older the voters, the more likely they were to have voted to leave the EU. Nearly three quarters (73%) of 18 to 24 year-olds voted to remain, falling to under two thirds (62%) among 25-34s. A majority of those aged over 45 voted to leave, rising to 60% of those aged 65 or over. Most people with children aged ten or under voted to remain; most of those with children aged 11 or older voted to leave.
A majority of those working full-time or part-time voted to remain in the EU; most of those not working voted to leave. More than half of those retired on a private pension voted to leave, as did two thirds of those retired on a state pension.
Among private renters and people with mortgages, a small majority (55% and 54%) voted to remain; those who owned their homes outright voted to leave by 55% to 45%. Around two thirds of council and housing association tenants voted to leave.
A majority (57%) of those with a university degree voted to remain, as did 64% of those with a higher degree and more than four in five (81%) of those still in full time education. Among those whose formal education ended at secondary school or earlier, a large majority voted to leave.
White voters voted to leave the EU by 53% to 47%. Two thirds (67%) of those describing themselves as Asian voted to remain, as did three quarters (73%) of black voters. Nearly six in ten (58%) of those describing themselves as Christian voted to leave; seven in ten Muslims voted to remain.
The AB social group (broadly speaking, professionals and managers) were the only social group among whom a majority voted to remain (57%). C1s divided fairly evenly; nearly two thirds of C2DEs (64%) voted to leave the EU.
All, depressingly, clear.