Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018		Jun. 30, 2017
INTEREST INCOME
Interest and fees on loans	$ 154,135	$ 134,273	$ 301,150		$ 262,596
Interest and fees on loans held for sale	372	263	676		459
Interest on investment securities	65,564	54,975	118,806		110,240
Interest on federal funds sold and short-term securities purchased under agreements to resell	177	37	357		60
Interest on long-term securities purchased under agreements to resell	3,785	3,684	7,899		7,477
Interest on deposits with banks	1,590	362	2,730		759
Total interest income	225,623	193,594	431,618		381,591
INTEREST EXPENSE
Savings, interest checking and money market	6,519	4,342	12,108		8,232
Time open and C.D.'s of less than $100,000	694	674	1,356		1,318
Time open and C.D.'s of $100,000 and over	3,483	2,822	6,322		5,585
Interest on federal funds purchased and securities sold under agreements to repurchase	3,956	2,038	7,957		3,577
Interest on other borrowings	12	911	24		1,799
Total interest expense	14,664	10,787	27,767		20,511
Net interest income	210,959	182,807	403,851		361,080
Provision for loan losses	10,043	10,758	20,439		21,886
Net interest income after provision for loan losses	200,916	172,049	383,412		339,194
NON-INTEREST INCOME
Bank card transaction fees	43,215	37,295	84,668		73,046
Trust fees	37,036	33,120	73,098		65,134
Deposit account charges and other fees	23,893	22,861	46,875		44,803
Capital market fees	1,992	2,156	4,283		4,498
Consumer brokerage services	3,971	3,726	7,739		7,375
Loan fees and sales	3,229	4,091	6,091		7,259
Other	11,514	12,131	21,786		22,878
Total non-interest income	124,850	115,380	244,540		224,993
INVESTMENT SECURITIES GAINS (LOSSES), NET
Investment securities gains (losses), net	(3,075)	1,651	2,335	[1]	879	[1]
NON-INTEREST EXPENSE
Salaries and employee benefits	115,589	108,829	231,483		221,198
Net occupancy	11,118	11,430	22,702		22,873
Equipment	4,594	4,776	9,025		9,385
Supplies and communication	5,126	5,446	10,439		11,155
Data processing and software	21,016	20,035	41,706		39,940
Marketing	5,142	4,488	9,947		7,712
Deposit insurance	3,126	3,592	6,583		7,063
Community Service	656	2,916	1,385		5,860
Other	15,493	15,378	30,867		31,081
Total non-interest expense	181,860	176,890	364,137		356,267
Income before income taxes	140,831	112,190	266,150		208,799
Less income taxes	29,507	33,201	52,765		58,108
Net income	111,324	78,989	213,385		150,691
Less non-controlling interest expense (income)	994	29	2,071		227
Net income attributable to Commerce Bancshares, Inc.	110,330	78,960	211,314		150,464
Preferred Stock Dividends	2,250	2,250	4,500		4,500
Net Income (Loss) Available to Common Stockholders	$ 108,080	$ 76,710	$ 206,814		$ 145,964
Net income per common share - basic	$ 1.02	$ 0.71	$ 1.94		$ 1.36
Net income per common share - diluted	$ 1.01	$ 0.71	$ 1.93		$ 1.36

[1] Available for sale and non-marketable securities