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First Bank & Trust Locations & Branches Brookings, South Dakota
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First Bank & Trust operates 22 branches from its headquarters in Brookings, SD, .
First Bank & Trust branch network
Its 22 branches span 2 states and 17 cities. The most are in SOUTH DAKOTA (15) and MINNESOTA (7). SOUTH DAKOTA holds 78.2% of its branch deposits. Brookings, SD has the most of its branches, 4. Its largest office by deposits is its main office in Brookings, SD, with $1.35B (32.3% of its branch deposits). It had the same number of branches on June 30, 2025.
First Bank & Trust at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 10.37% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $4.78B
- Tier 1 leverage ratio, Q2 2026
- 10.37%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1925
Full financial profile · Is First Bank & Trust safe? · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Brookings, SD (4 branches) | 1 of 6 | 75.1% | $1.46B |
| State: SD (15 branches) | 6 of 82 | 0.3% | $3.26B |
Ranked by total assets among banks headquartered in the state: Largest banks in South Dakota.
Share by county and metro area
First Bank & Trust's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Brookings, SD (5 branches) | 1 of 8 | 66.9% | $1.50B | $2.24B |
| Minnehaha, SD (4 branches) | 5 of 25 | 0.2% | $1.01B | $478.92B |
| Pipestone, MN (1 branch) | 1 of 4 | 51.6% | $297.9M | $577.0M |
| Grant, SD (1 branch) | 1 of 5 | 54.4% | $219.2M | $402.7M |
| Lake, SD (1 branch) | 1 of 6 | 37.2% | $185.0M | $497.1M |
| Le Sueur, MN (1 branch) | 1 of 8 | 19.7% | $159.8M | $810.4M |
| Isanti, MN (1 branch) | 1 of 5 | 27.0% | $158.9M | $589.2M |
| Lincoln, SD (1 branch) | 9 of 26 | <0.1% | $112.5M | $647.52B |
| Hennepin, MN (1 branch) | 38 of 67 | <0.1% | $104.4M | $144.16B |
| Codington, SD (1 branch) | 8 of 10 | 6.1% | $96.5M | $1.59B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Brookings, SD (5 branches) | 1 of 8 | 66.9% | $1.50B | $2.24B |
| Sioux Falls, SD (5 branches) | 9 of 39 | <0.1% | $1.13B | $1.13T |
| Minneapolis-St. Paul-Bloomington, MN-WI (6 branches) | 30 of 124 | 0.2% | $610.9M | $252.68B |
| Watertown, SD (1 branch) | 8 of 12 | 5.3% | $96.5M | $1.81B |
| Vermillion, SD (1 branch) | 3 of 7 | 15.9% | $67.8M | $426.3M |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First Bank & Trust (main office) | Brookings, SD | 57006 | $1.35B |
| Sioux Falls Branch | Sioux Falls, SD | 57104 | $749.7M |
| Pipestone Branch | Pipestone, MN | 56164 | $297.9M |
| First Bank & Trust of Milbank Branch | Milbank, SD | 57252 | $219.2M |
| Madison Branch | Madison, SD | 57042 | $185.0M |
| New Prague Branch | New Prague, MN | 56071 | $159.8M |
| Cambridge Branch | Cambridge, MN | 55008 | $158.9M |
| Sioux Falls I-229 & 57th Street Branch | Sioux Falls, SD | 57108 | $138.2M |
| Canton Branch | Canton, SD | 57013 | $112.5M |
| Edina Branch | Edina, MN | 55435 | $104.4M |
| Watertown Branch | Watertown, SD | 57201 | $96.5M |
| Roseville Branch | Roseville, MN | 55113 | $80.0M |
| Garretson Branch | Garretson, SD | 57030 | $76.8M |
| Sixth Street Branch | Brookings, SD | 57006 | $68.3M |
| Vermillion Branch | Vermillion, SD | 57069 | $67.8M |
| Toronto Branch | Toronto, SD | 57268 | $64.2M |
| Princeton Branch | Princeton, MN | 55371 | $61.0M |
| Dawley Farms Branch | Sioux Falls, SD | 57110 | $49.5M |
| East Bethel Branch | Cedar, MN | 55011 | $46.8M |
| White Branch | White, SD | 57276 | $45.0M |
| Brookings Mall Branch | Brookings, SD | 57006 | $26.9M |
| Walmart Branch | Brookings, SD | 57006 | $12.6M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 3973) · FFIEC NIC profile (RSSD 77851)