This is how the vote tracking map on the Guardian website now looks:
The map is proportional to population so provides a goodish view of how the country split. The giant yellow ball in the south is London. Scotland is at the top and Northern Ireland out in the sea. Typically major cities voted Remain. Liverpool, Manchester, Leeds in the north voted Remain as did Bristol in the South West and Cardiff in Wales but notably Birmingham in the midlands voted Leave.
But it isn’t an urban/rural split. Former industrial towns in the north typically voted leave including Wigan and St Helens sandwiched between Liverpool and Manchester.