- Most MPs (who declared their intention before the vote) voted Remain.
- 479 MPs said they were voting Remain: 158 Leave.
- 75% voted Remain: 25% Leave.
- Most Labour MPs voted Remain (96%).
- Conservative MPs were more split although most voted Remain (57%).
Source: http://www.bbc.co.uk/news/uk-politics-eu-referendum-35616946