Yes. As with 4G you should ultimately be able to get 5G in most parts of the UK, whether urban or rural. However, again as with 4G it’s likely urban areas that will get widespread coverage first. Indeed, most of the places that currently have 5G are towns and cities.
This is to be expected, since more people can be given coverage in a smaller space, making roll outs in these areas a more efficient use of a network’s resources initially, but rural locations are sure to follow.
If you’re not sure whether you have 5G where you are now, make sure to check 5G coverage.