Election results for Letchworth South West

 Liberal Democrats Win Sean Prendergast was elected with a majority of 12%. A total of 2644 votes were cast, representing a turnout of 45% .

Table of main parties and election candidates retaining deposit

Election Candidate	Party	Number	%	Status	% Change
Sean Prendergast	Liberal Democrats	1223	46%	Newly elected	n/a
Morgan William Derbyshire	Conservative	897	34%	Not elected	n/a
Sadie Rebecca Laura Billing	Labour Party	344	13%	Not elected	n/a
Dugald James Muir	Green Party	180	7%	Not elected	n/a