Consolidated Statements Of Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
INTEREST INCOME
Interest and fees on loans		$ 166,432	$ 147,015
Interest and fees on loans held for sale		334	304
Interest on investment securities		55,422	53,242
Interest on federal funds sold and short-term securities purchased under agreements to resell		33	180
Interest on long-term securities purchased under agreements to resell		3,758	4,114
Interest on deposits with banks		1,886	1,140
Total interest income		227,865	205,995
INTEREST EXPENSE
Savings, interest checking and money market		9,602	5,589
Certificates of deposit of less than $100,000		1,259	662
Certificates of deposit of $100,000 and over		6,002	2,839
Interest on federal funds purchased and securities sold under agreements to repurchase		7,509	4,001
Interest on other borrowings		5	12
Total interest expense		24,377	13,103
Net interest income		203,488	192,892
Provision for loan losses		12,463	10,396
Net interest income after provision for loan losses		191,025	182,496
NON-INTEREST INCOME
Bank card transaction fees		39,644	41,453
Trust fee revenue		37,256	36,062
Deposit fee revenue		23,018	22,982
Capital market fees		1,879	2,291
Consumer brokerage services		3,747	3,768
Loan fees and sales		3,309	2,862
Other		12,387	10,272
Total non-interest income		121,240	119,690
INVESTMENT SECURITIES GAINS (LOSSES), NET
Investment securities gains (losses), net	[1]	(925)	5,410
NON-INTEREST EXPENSE
Salaries and employee benefits		122,128	115,894
Net occupancy		11,501	11,584
Equipment		4,471	4,431
Supplies and communication		5,162	5,313
Data processing and software		22,260	20,690
Marketing		5,900	4,805
Deposit insurance		1,710	3,457
Community Service		803	729
Other		17,490	15,374
Total non-interest expense		191,425	182,277
Income before income taxes		119,915	125,319
Less income taxes		22,860	23,258
Net income		97,055	102,061
Less non-controlling interest expense (income)		(83)	1,077
Net income attributable to Commerce Bancshares, Inc.		97,138	100,984
Preferred Stock Dividends		2,250	2,250
Net Income (Loss) Available to Common Stockholders		$ 94,888	$ 98,734
Net income per common share - basic		$ 0.85	$ 0.88
Net income per common share - diluted		$ 0.85	$ 0.88

[1] Available for sale debt securities, equity securities, and other securities