First American Bank and Trust holds $1.2B in deposits across 11 counties in 3 ranked markets and 1 state. Its deposit footprint is highly concentrated: the top three counties (St. James County, St. Charles County, Lafourche County) hold 66% of its deposits. It ranks among the three largest institutions in 3 of the 11 counties where it operates.
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Data as of June 30, 2025 (FDIC Summary of Deposits)
| County | Deposits | County’s % of Bank’s Deposits | Bank’s % of County Deposits | Branches | |
|---|---|---|---|---|---|
| 1. | St. James County, LA | $461M | 38.9% | 78.9% | 4 |
| 2. | St. Charles County, LA | $184M | 15.5% | 28.8% | 5 |
| 3. | Lafourche County, LA | $141M | 11.9% | 6.6% | 2 |
| 4. | Jefferson County, LA | $127M | 10.7% | 0.9% | 4 |
| 5. | Ascension County, LA | $83M | 7.0% | 4.4% | 3 |
| 6. | St. John The Baptist County, LA | $69M | 5.8% | 15.1% | 1 |
| 7. | Assumption County, LA | $47M | 4.0% | 22.5% | 2 |
| 8. | Tangipahoa County, LA | $35M | 3.0% | 1.0% | 1 |
| 9. | East Baton Rouge County, LA | $18M | 1.5% | 0.1% | 1 |
| 10. | St. Tammany County, LA | $11M | 1.0% | 0.1% | 1 |
| 11. | Terrebonne County, LA | $8M | 0.7% | 0.2% | 1 |
Deposits are as reported to the FDIC at branch level, June 30, 2025, and are nominal. “County’s % of Bank’s Deposits” is this county’s share of the institution’s total deposits; “Bank’s % of County Deposits” is this institution’s deposits as a percent of all deposits booked in that county. Counties within a Combined or Metropolitan Statistical Area link to their full profile; other counties are shown for completeness.
All 293 markets and the 1,533 counties within a CSA or MSA are covered in the Market Intelligence resource. See the methodology for how each figure is built and when to expect updates.