Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2011

Shareholders' Equity [Abstract]

Table of actual regulatory capital amounts and ratios

Trustmark's and TNB's actual regulatory capital amounts and ratios are presented in the table below ($ in thousands):

	Actual					Minimum Regulatory					Provision to be
	Regulatory Capital					Capital Required					Well-Capitalized
	Amount		Ratio			Amount		Ratio			Amount		Ratio
At June 30, 2011:
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,080,092		16.47	%	$	524,535		8.00	%		n/a		n/a
Trustmark National Bank		1,042,010		16.09	%		518,140		8.00	%	$	647,675		10.00	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	948,250		14.46	%	$	262,268		4.00	%		n/a		n/a
Trustmark National Bank		912,559		14.09	%		259,070		4.00	%	$	388,605		6.00	%
Tier 1 Capital (to Average Assets)
Trustmark Corporation	$	948,250		10.18	%	$	279,398		3.00	%		n/a		n/a
Trustmark National Bank		912,559		9.92	%		275,914		3.00	%	$	459,857		5.00	%
At December 31, 2010:
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,051,933		15.77	%	$	533,774		8.00	%		n/a		n/a
Trustmark National Bank		1,014,219		15.40	%		526,894		8.00	%	$	658,617		10.00	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	918,600		13.77	%	$	266,887		4.00	%		n/a		n/a
Trustmark National Bank		883,549		13.42	%		263,447		4.00	%	$	395,170		6.00	%
Tier 1 Capital (to Average Assets)
Trustmark Corporation	$	918,600		10.14	%	$	271,867		3.00	%		n/a		n/a
Trustmark National Bank		883,549		9.89	%		267,967		3.00	%	$	446,612		5.00	%

Components of accumulated other comprehensive income (loss) and the related tax effects

The following table presents the components of accumulated other comprehensive income (loss) and the related tax effects allocated to each component for the periods ended June 30, 2011 and 2010 ($ in thousands):

							Accumulated
							Other
	Before-Tax			Tax			Comprehensive
	Amount			Effect			Income (Loss)
Balance, January 1, 2011	$	(18,469	)	$	7,043		$	(11,426	)
Unrealized holding gains on AFS arising during period		22,073			(8,443	)		13,630
Adjustment for net gains realized in net income		(58	)		22			(36	)
Pension and other postretirement benefit plans		2,439			(933	)		1,506
Balance, June 30, 2011	$	5,985		$	(2,311	)	$	3,674
Balance, January 1, 2010	$	(2,596	)	$	972		$	(1,624	)
Unrealized holding gains on AFS arising during period		11,809			(4,517	)		7,292
Adjustment for net gains realized in net income		(2,224	)		851			(1,373	)
Pension and other postretirement benefit plans		1,796			(687	)		1,109
Balance, June 30, 2010	$	8,785		$	(3,381	)	$	5,404