[Stooky Bill]

Same number of seats yes but there are changes, Isle of Wight for example has been split into two

Yes the idea is for constituencies to have a similar number of people living in them. Many many years ago changing populations led to 'rotten boroughs' where some MPs had very few, if any constituents. So boundaries are shifted every so often.

Lots this time round as there's been a big boundary review. It was originally planned to be reviewed around 2013-2016 but the more frequent elections in 2015,17 and 19 meant it didn't happen. One proposal then was to reduce the Commons to 600 seats

For this election 90% of constituencies have changed in some way. Most are slightly different with a ward or two being moved between them. Lots have been renamed to reflect their changed geography.

It does mean that some statistical comparisons between 2019 and 2024 won't be that accurate as they have changed. It also means that in a few cases there are incumbent MPs standing against each other