Lists · Deposits by county
St. Louis County, MO Bank Deposit Market Share
Commerce Bank holds the largest share of deposits in St. Louis County, MO, 12.5%, followed by Bank of America, N.A. (12.4%) and U.S. Bank N.A. (12.2%). 55 institutions hold $48.49B at 302 offices as of June 30, 2026, up 5.4% from 2025.
Largest share changes since 2025
Gained: The Bank of Missouri (2.18 points, new to this market); Regions Bank (0.88 points); PNC Bank, N.A. (0.57 points).
Lost: Bank of America, N.A. (-0.56 points); U.S. Bank N.A. (-0.42 points); BMO Bank N.A. (-0.29 points).
| # | Institution | Deposits | Market share | Share change from 2025 |
|---|---|---|---|---|
| 1 | Commerce Bank | $6.04B | 12.45% | -0.09 pts |
| 2 | Bank of America, N.A. | $6.02B | 12.43% | -0.56 pts |
| 3 | U.S. Bank N.A. | $5.93B | 12.23% | -0.42 pts |
| 4 | Enterprise Bank & Trust | $4.44B | 9.16% | -0.02 pts |
| 5 | Regions Bank | $2.87B | 5.93% | +0.88 pts |
| 6 | PNC Bank, N.A. | $2.67B | 5.51% | +0.57 pts |
| 7 | First Bank | $2.24B | 4.63% | -0.09 pts |
| 8 | Midwest Bankcentre | $1.79B | 3.69% | -0.08 pts |
| 9 | The Central Trust Bank | $1.51B | 3.12% | +0.02 pts |
| 10 | Cass Commercial Bank | $1.06B | 2.19% | -0.08 pts |
| 11 | The Bank of Missouri | $1.06B | 2.18% | +2.18 pts |
| 12 | Saint Louis Bank | $922.0M | 1.90% | +0.06 pts |
| 13 | CIBC Bank USA | $898.5M | 1.85% | +0.39 pts |
| 14 | Triad Bank | $896.7M | 1.85% | +0.16 pts |
| 15 | Parkside Financial Bank and Trust | $890.2M | 1.84% | -0.11 pts |
| 16 | Simmons Bank | $890.2M | 1.84% | -0.18 pts |
| 17 | Busey Bank | $799.9M | 1.65% | -0.06 pts |
| 18 | Carrollton Bank | $795.5M | 1.64% | +0.06 pts |
| 19 | BMO Bank N.A. | $620.3M | 1.28% | -0.29 pts |
| 20 | JPMorgan Chase Bank, N.A. | $619.9M | 1.28% | +0.14 pts |
| 21 | CNB St. Louis Bank | $599.6M | 1.24% | -0.13 pts |
| 22 | Sterling Bank | $458.0M | 0.94% | -0.02 pts |
| 23 | Midwest Regional Bank | $383.5M | 0.79% | -0.01 pts |
| 24 | Royal Banks of Missouri | $375.9M | 0.78% | -0.09 pts |
| 25 | Great Southern Bank | $357.4M | 0.74% | -0.05 pts |
| 26 | First Mid Bank & Trust, N.A. | $353.1M | 0.73% | -0.07 pts |
| 27 | UMB Bank, N.A. | $349.4M | 0.72% | -0.03 pts |
| 28 | Montgomery Bank | $318.0M | 0.66% | -0.04 pts |
| 29 | Lindell Bank & Trust Company | $312.2M | 0.64% | -0.02 pts |
| 30 | Midland States Bank | $283.2M | 0.58% | -0.01 pts |
| 31 | Commercial Bank | $246.5M | 0.51% | -0.04 pts |
| 32 | American Bank of Freedom | $189.8M | 0.39% | -0.01 pts |
| 33 | St. Johns Bank & Trust Company | $184.6M | 0.38% | -0.05 pts |
| 34 | FCB Banks | $181.9M | 0.38% | +0.03 pts |
| 35 | Peoples National Bank, N.A. | $131.8M | 0.27% | +0.07 pts |
| 36 | Sullivan Bank | $119.1M | 0.25% | +0.02 pts |
| 37 | The Northern Trust Company | $93.0M | 0.19% | +0.06 pts |
| 38 | Southern Bank | $89.8M | 0.19% | +0.01 pts |
| 39 | Paramount Bank | $74.7M | 0.15% | -0.01 pts |
| 40 | Academy Bank, N.A. | $68.6M | 0.14% | +0.01 pts |
| 41 | Bank of Washington | $55.6M | 0.11% | +0.08 pts |
| 42 | State Bank | $50.0M | 0.10% | +0.00 pts |
| 43 | Farmers and Merchants Bank of St. Clair | $47.3M | 0.10% | 0.00 pts |
| 44 | The Huntington National Bank | $45.8M | 0.09% | +0.09 pts |
| 45 | Bank of Springfield | $41.3M | 0.09% | +0.01 pts |
| 46 | Associated Bank, N.A. | $25.4M | 0.05% | +0.03 pts |
| 47 | FCNB Bank | $18.8M | 0.04% | 0.00 pts |
| 48 | First State Bank of St. Charles, Missouri | $18.0M | 0.04% | -0.01 pts |
| 49 | Heartland Bank and Trust Company | $16.1M | 0.03% | +0.03 pts |
| 50 | Bank Star | $10.2M | 0.02% | +0.00 pts |
| 51 | Bank of Franklin County | $8.9M | 0.02% | +0.01 pts |
| 52 | The Bank of Houston | $5.0M | 0.01% | 0.00 pts |
| 53 | Edward Jones Trust Company | $500K | <0.01% | 0.00 pts |
| 54 | CIBC National Trust Company | $0 | <0.01% | 0.00 pts |
| 54 | Stifel Bank and Trust | $0 | <0.01% | 0.00 pts |
About this list
Deposits are those held at each institution's offices in St. Louis County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.
Share change compares the institution's share in 2025 and 2026 in percentage points. Deposit change compares its deposits here in the two years and includes deposits that moved through mergers and branch sales; "New" means it had no offices here a year earlier. Offices that closed during the year are placed by their ZIP code or city.
Wider markets
Other counties in Missouri
More lists and rankings
Explore more: deposits by state · deposits by metro area · all rankings