RANKING · Q2 2026

Largest net interest margin improvement in Louisiana

93 of 104 banks in Louisiana that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets and a comparable quarter a year earlier. Institutions with equal values share a rank. Source: FDIC quarterly financial data.

Largest net interest margin improvement in Louisiana, Q2 2026
Rank	Institution	Headquarters	Net interest margin, change over 12 months	Total assets
1	American Bank	Covington, LA	+69 bps	$367 million
2	Investar Bank N.A.	Baton Rouge, LA	+65 bps	$3.9 billion
3	Simmesport State Bank	Simmesport, LA	+56 bps	$198 million
4	Hibernia Bank	New Orleans, LA	+51 bps	$257 million
5	Winnsboro State Bank & Trust Company	Winnsboro, LA	+51 bps	$426 million
6	Bonvenu Bank N.A.	Bossier City, LA	+50 bps	$1.6 billion
7	Bank of Oak Ridge	Oak Ridge, LA	+50 bps	$139 million
8	Bank of Zachary	Zachary, LA	+50 bps	$416 million
9	Southern Heritage Bank	Jonesville, LA	+47 bps	$398 million
10	Resource Bank	Covington, LA	+46 bps	$981 million
11	Fifth District Savings Bank	New Orleans, LA	+44 bps	$532 million
12	Feliciana Bank & Trust Company	Clinton, LA	+40 bps	$180 million
13	South Louisiana Bank	Houma, LA	+40 bps	$660 million
14	Louisiana National Bank	Ruston, LA	+40 bps	$474 million
15	Homeland Federal Savings Bank	Columbia, LA	+39 bps	$658 million
16	Anthem Bank & Trust	Plaquemine, LA	+38 bps	$250 million
17	Marion State Bank	Marion, LA	+38 bps	$237 million
18	Community Bank of Louisiana	Mansfield, LA	+36 bps	$853 million
19	Lakeside Bank	Lake Charles, LA	+36 bps	$382 million
20	Home Federal Bank	Shreveport, LA	+35 bps	$644 million
21	Citizens Savings Bank	Bogalusa, LA	+35 bps	$329 million
22	Bank of St. Francisville	Saint Francisvil, LA	+34 bps	$399 million
23	Citizens Bank and Trust Company	Plaquemine, LA	+32 bps	$481 million
24	The Bank	Jennings, LA	+32 bps	$462 million
25	Citizens Bank & Trust Company of Vivian, Louisiana	Vivian, LA	+31 bps	$160 million
26	State Bank & Trust Company	Golden Meadow, LA	+31 bps	$165 million
27	The Evangeline Bank and Trust Company	Ville Platte, LA	+29 bps	$1.1 billion
28	Washington State Bank	Washington, LA	+28 bps	$309 million
29	First National Bank in Deridder	Deridder, LA	+26 bps	$419 million
30	Progressive National Bank	Mansfield, LA	+26 bps	$123 million
31	Merchants & Farmers Bank & Trust Company	Leesville, LA	+26 bps	$541 million
32	The Cottonport Bank	Cottonport, LA	+26 bps	$582 million
33	First American Bank and Trust	Vacherie, LA	+25 bps	$1.4 billion
34	Tensas State Bank	Newellton, LA	+24 bps	$185 million
35	American Bank & Trust Company	Opelousas, LA	+24 bps	$267 million
36	First Federal Bank of Louisiana	Lake Charles, LA	+23 bps	$1.1 billion
37	Bank of Sunset & Trust Company	Sunset, LA	+23 bps	$192 million
38	Red River Bank	Alexandria, LA	+23 bps	$3.3 billion
39	Bank of Winnfield & Trust Company	Winnfield, LA	+23 bps	$156 million
40	Century Next Bank	Ruston, LA	+22 bps	$916 million
41	Origin Bank	Choudrant, LA	+21 bps	$10.2 billion
42	Citizens Progressive Bank	Winnsboro, LA	+21 bps	$243 million
43	Currency Bank	Baton Rouge, LA	+20 bps	$249 million
44	Metairie Bank & Trust Company	Metairie, LA	+19 bps	$666 million
45	Delta Bank	Vidalia, LA	+18 bps	$632 million
46	Home Bank N.A.	Lafayette, LA	+18 bps	$3.6 billion
47	Synergy Bank	Houma, LA	+17 bps	$1.3 billion
48	St. Landry Bank and Trust Company	Opelousas, LA	+16 bps	$295 million
49	Bank of Commerce & Trust Company	Crowley, LA	+16 bps	$378 million
50	Guaranty Bank & Trust Company of Delhi	Delhi, LA	+14 bps	$457 million
51	Bank of Coushatta	Coushatta, LA	+13 bps	$317 million
52	B1bank	Baton Rouge, LA	+12 bps	$8.9 billion
53	Plaquemine Bank and Trust Company	Plaquemine, LA	+11 bps	$218 million
54	Community First Bank	New Iberia, LA	+10 bps	$782 million
55	Franklin State Bank & Trust Company	Winnsboro, LA	+8 bps	$225 million
56	Concordia Bank & Trust Company	Vidalia, LA	+7 bps	$667 million
57	Farmers State Bank & Trust Company	Church Point, LA	+6 bps	$175 million
58	City Bank & Trust Co.	Natchitoches, LA	+5 bps	$382 million
59	Gulf Coast Bank	Abbeville, LA	+4 bps	$514 million
60	Rayne State Bank & Trust Company	Rayne, LA	+4 bps	$541 million
61	Jd Bank	Jennings, LA	+3 bps	$1.3 billion
62	Patterson State Bank	Patterson, LA	+1 bps	$331 million
63	First National Bank of Louisiana	Crowley, LA	+1 bps	$631 million
64	Exchange Bank and Trust Company	Natchitoches, LA	0 bps	$213 million
65	Gibsland Bank & Trust Company	Gibsland, LA	-2 bps	$574 million
66	Bank of Abbeville & Trust Company	Abbeville, LA	-2 bps	$245 million
67	Vermilion Bank & Trust Company	Kaplan, LA	-2 bps	$145 million
68	Catalyst Bank	Opelousas, LA	-4 bps	$287 million
69	Liberty Bank and Trust Company	New Orleans, LA	-4 bps	$1.1 billion
70	First Guaranty Bank	Hammond, LA	-6 bps	$3.9 billion
71	Hodge Bank & Trust Company	Hodge, LA	-7 bps	$128 million
72	Beauregard Federal Savings Bank	Deridder, LA	-7 bps	$106 million
73	Guaranty Bank and Trust Company	New Roads, LA	-9 bps	$319 million
74	Fidelity Bank	New Orleans, LA	-9 bps	$1.2 billion
75	Gulf Coast Bank and Trust Company	New Orleans, LA	-9 bps	$3.9 billion
76	Bank of Erath	Erath, LA	-12 bps	$105 million
77	The First National Bank of Jeanerette	Jeanerette, LA	-15 bps	$646 million
78	South Lafourche Bank & Trust Company	Larose, LA	-16 bps	$178 million
79	Landmark Bank	Clinton, LA	-19 bps	$230 million
80	Colfax Banking Company	Colfax, LA	-19 bps	$152 million
81	Bank of Louisiana	New Orleans, LA	-23 bps	$110 million
82	Caldwell Bank & Trust Company	Columbia, LA	-26 bps	$299 million
83	United Community Bank	Raceland, LA	-27 bps	$666 million
84	Bom Bank	Natchitoches, LA	-28 bps	$1.6 billion
85	First National Bank USA	Boutte, LA	-32 bps	$249 million
86	First National Bankers Bank	Baton Rouge, LA	-42 bps	$983 million
87	Sabine State Bank and Trust Company	Many, LA	-47 bps	$1.3 billion
88	Citizens Bank & Trust Company	Covington, LA	-58 bps	$184 million
89	Clb the Community Bank	Jonesville, LA	-60 bps	$351 million
90	Commercial Capital Bank	Delhi, LA	-88 bps	$611 million
91	Jonesboro State Bank	Jonesboro, LA	-101 bps	$1.3 billion
92	M C Bank & Trust Company	Morgan City, LA	-493 bps	$710 million
93	Crescent Bank	Metairie, LA	-1203 bps	$1.1 billion

Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings