The Democratic challenger will be awareded four electoral votes from the key battleground state.
Although it was long considered a battleground, Mr Biden picking up New Hampshire comes as no surprise given the large lead he held in the polls throughout the presidential race.
Mr Trump attempted to swing the state his way by hosting a campaign rally in Londonderry last month given he only narrowly lost it during the 2016 election. That year, Mrs Clinton beat Mr Trump by about 2,700 votes, which was less than 1 per cent of the 732,000 total ballots cast – making it the second closest race in the presidential election.
But the effort was futile, as the Democratic stronghold remained in the state.
This win comes after Mr Biden was defeated in the New Hampshire’s Democratic primary in February. The Democratic challenger placed in a dismal fifth place during the primary behind Bernie Sanders, Pete Buttigieg, Amy Klobuchar and Elizabeth Warren.
Mr Biden then surged ahead during Super Tuesday, which helped him become the Democratic Party’s pick for president.
The victory in New Hampshire was necessary for Mr Biden on his path to potentially taking the White House.
Either candidate needs 270 electoral votes in order to win the 2020 presidential election.
Register for free to continue reading
Registration is a free and easy way to support our truly independent journalism
By registering, you will also enjoy limited access to Premium articles, exclusive newsletters, commenting, and virtual events with our leading journalists
Already have an account? sign in
Join our new commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies