St. Martin Parish, Louisiana, a county in the Lafayette-New Iberia-Opelousas, LA market, holds $837M in deposits across 6 insured institutions and 14 branches. Farmers-Merchants Bank & Trust Company is the largest deposit holder at 34.3% share. The top three banks hold 77% of deposits, which places the county in the Concentrated band. Deposits have grown 13.2% since 2020 while the branch count fell by 12.5%. It produces $1.5B of output, ranking #1,039 of the 1,523 ranked counties by economic output.
Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.
Deposit trend
Branches: 16 in 2020 to 14 in 2025. Institutions: 6 to 6. Top-three share: 79% to 77%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Farmers-Merchants Bank & Trust Company | $287M | 34.3% | +4% |
| Hancock Whitney Bank | $187M | 22.3% | +13% |
| Home Bank | $174M | 20.8% | +23% |
| b1BANK | $90M | 10.8% | +34% |
| First Horizon Bank | $49M | 5.9% | +2% |
| Community First Bank | $49M | 5.9% | +20% |
The 6 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. “No 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year. Deposit figures are nominal and are not adjusted for inflation.
Part of the Lafayette-New Iberia-Opelousas market
St. Martin Parish is one of 6 counties that make up the Lafayette-New Iberia-Opelousas, LA market, a Combined Statistical Area (ranked #108 of 293 U.S. markets by economic output). It produces 5.8% of the market’s output and holds 5.5% of its deposits.
| Measure | St. Martin Parish | Share of parent market |
|---|---|---|
| 2024 GDP | $1.5B | 5.8% |
| Deposits | $837M | 5.5% |
| Population | 51,106 | 8.9% |
View the full Lafayette-New Iberia-Opelousas market profile →
Recruiting in St. Martin Parish
Deposits are held closely by the largest banks, which often means the bankers worth recruiting are inside a small number of institutions. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like St. Martin Parish.
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