Bob Blackman has been re-elected as the MP for Harrow East, with an increased majority.
The Conservative candidate beat Labour's Pamela Fitzpatrick by 8,170 votes, more than four times the majority at the 2017 election.
Adam Bernard of the Liberal Democrats came third.
Voter turnout was down by 2.2 percentage points since the last general election.
More than 49,000 people, 68.6% of those eligible to vote, went to polling stations across the area on Thursday, in the first December general election since 1923.
All three candidates keep their deposits, after receiving more than 5% of the votes.
This story was created using some automation.