MIDSOUTH BANCORP, INC. AND SUBSIDIARIES EXHIBIT 11

COMPUTATION OF EARNINGS PER SHARE (Unaudited)
FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2005 AND 2004

	Second Quarter		Second Quarter		Year-to-Date		Year-to-Date
	June 30,		June 30,		June 30,		June 30,
	2005		2004		2005		2004
BASIC
Earnings:
Income applicable to common stock	$	2,040,253	$	1,745,367	$	3,963,676	$	3,406,315
Shares:
Weighted average number of common shares outstanding		4,897,241		4,387,392		4,891,197		4,382,915
Earnings per common share:
Income applicable to common stock	$	0.42	$	0.40	$	0.81	$	0.77
DILUTED
Earnings:
Net income	$	2,040,253	$	1,745,367	$	3,963,676	$	3,406,315
Weighted average number of common shares outstanding		4,897,241		4,387,392		4,891,197		4,382,915
Assuming exercise of options, reduced by the number of shares which could have been purchased with the proceeds from exercise of such options at the average issue price		171,680		197,338		175,701		200,009
Weighted average number of common shares outstanding, as adjusted		5,068,921		4,584,730		5,066,898		4,582,924
Fully diluted earnings per common share	$	0.40	$	0.38	$	0.78	$	0.74