Nearly 200 seats have not changed party hands since World War II, campaigners have warned today.
Analysis by the Electoral Reform Society (ERS) found the average seat has not changed hands for 42 years, and just 11% of seats changed in the last election.
The investigation found that since 1945, 98 of Labour seats and 94 of Conservative seats haven’t changed hands.
Dr Jess Garland, director of policy and research for the ERS, said: ‘Huge parts of this country are effectively competition-free zones, with "safe" seats leaving voters demoralised and ignored time and again.
‘As our research shows – seats representing nearly 14 million voters have not seen party change in a lifetime, and dozens more seats have not seen change in a century. Elections under Westminster’s broken system rely on a handful of "battleground" seats, while many areas barely have a contest at all.’