The older ones generally tend to be city ones and the newer one campus ones. The earlier universities were built when the cities hadnt expanded. Anything gaining university after 1950 is likely to be on a campus for this reason. Places like Manchester, Bristol, Liverpool, Leeds, Sheffield, UCL, LSE, Imperial and Kings tend to be in the City.
Places like Exeter, Bath, Lancaster, Warwick, East Anglia are newer and built outside of the city centre. What are you actually looking for. The prospectus should help you.