1st Source Bank holds $7.4B in deposits across 20 counties in 7 ranked markets and 3 states. Its deposit footprint is highly concentrated: the top three counties (St. Joseph County, Elkhart County, Porter County) hold 69% of its deposits, and Indiana accounts for 95% of the total. It ranks among the three largest institutions in 7 of the 20 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. Joseph County, IN | $3.3B | 44.4% | 56.9% | 23 |
| 2. | Elkhart County, IN | $1.0B | 13.7% | 22.2% | 8 |
| 3. | Porter County, IN | $833M | 11.2% | 17.9% | 9 |
| 4. | Allen County, IN | $473M | 6.4% | 5.2% | 8 |
| 5. | Marshall County, IN | $451M | 6.1% | 41.7% | 5 |
| 6. | La Porte County, IN | $385M | 5.2% | 14.8% | 5 |
| 7. | Berrien County, MI | $215M | 2.9% | 9.6% | 5 |
| 8. | Starke County, IN | $156M | 2.1% | 36.2% | 1 |
| 9. | Tippecanoe County, IN | $126M | 1.7% | 3.2% | 3 |
| 10. | Kosciusko County, IN | $125M | 1.7% | 5.5% | 2 |
| 11. | Fulton County, IN | $69M | 0.9% | 15.2% | 1 |
| 12. | Kalamazoo County, MI | $61M | 0.8% | 1.3% | 2 |
| 13. | Wells County, IN | $54M | 0.7% | 8.7% | 1 |
| 14. | Pulaski County, IN | $38M | 0.5% | 7.2% | 1 |
| 15. | Sarasota County, FL | $38M | 0.5% | 0.2% | 1 |
| 16. | Cass County, MI | $30M | 0.4% | 7.9% | 1 |
| 17. | Huntington County, IN | $24M | 0.3% | 2.6% | 1 |
| 18. | Whitley County, IN | $21M | 0.3% | 3.1% | 1 |
| 19. | Dekalb County, IN | $12M | 0.2% | 1.2% | 1 |
| 20. | Hamilton County, IN | $7M | 0.1% | 0.0% | 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.