Croydon South

Unionist hold / Allan Macgregor Smith

	Party	Candidate	Votes	Percent	Change
	Unionist	Smith, Allan Macgregor	15,356	47.3%	-24.5%
	Labour	Muggeridge, Henry Thomas	8,942	27.5%	-0.7%
	Liberal	Dobson, Thomas William	8,183	25.2%	N/A
Majority			6,414	19.8%	-23.8%
Turnout			32,481	66.4%	11.4%
Swing				-11.9%
Note: These results are in comparison to the previous General Election, not the 14 Nov 1919 by-election