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Pioneer Bank & Trust Locations & Branches Belle Fourche, South Dakota
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Pioneer Bank & Trust operates 7 branches from its headquarters in Belle Fourche, SD, . Its main office is at 700 State St, Belle Fourche, SD 57717.
Pioneer Bank & Trust branch network
All 7 branches are in SOUTH DAKOTA, across 5 cities. Rapid City, SD has the most of its branches, 2. Its largest office by deposits is the Rapid City West Branch office in Rapid City, SD, with $249.4M (27.8% of its branch deposits). It had the same number of branches on June 30, 2025.
Pioneer Bank & Trust at a glance
Its CET1 capital ratio was 18.59% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $1.01B
- CET1 ratio, Q2 2026
- 18.59%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1937
Full financial profile · Is Pioneer Bank & Trust safe? · Pioneer Bank & Trust call report · 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: Belle Fourche, SD (1 branch) | 1 of 2 | 69.7% | $209.5M |
| State: SD (7 branches) | 18 of 82 | <0.1% | $896.5M |
Ranked by total assets among banks headquartered in the state: Largest banks in South Dakota.
Share by county and metro area
Pioneer 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 |
|---|---|---|---|---|
| Pennington, SD (2 branches) | 6 of 10 | 10.7% | $350.6M | $3.27B |
| Lawrence, SD (2 branches) | 2 of 8 | 21.9% | $215.3M | $981.0M |
| Butte, SD (1 branch) | 1 of 3 | 61.5% | $209.5M | $340.6M |
| Harding, SD (1 branch) | 1 of 1 | 100.0% | $62.6M | $62.6M |
| Meade, SD (1 branch) | 3 of 5 | 11.9% | $58.5M | $490.4M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Rapid City, SD (3 branches) | 4 of 11 | 10.9% | $409.1M | $3.76B |
| Spearfish, SD (2 branches) | 2 of 8 | 21.9% | $215.3M | $981.0M |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Rapid City West Branch | Rapid City, SD | 57702 | $249.4M |
| Spearfish Branch | Spearfish, SD | 57783 | $215.3M |
| Pioneer Bank & Trust (main office) | Belle Fourche, SD | 57717 | $209.5M |
| Rapid City South Branch | Rapid City, SD | 57701 | $101.2M |
| Buffalo Branch | Buffalo, SD | 57720 | $62.6M |
| Sturgis Branch | Sturgis, SD | 57785 | $58.5M |
| Administration Center | Spearfish, SD | 57783 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 15562) · FFIEC NIC profile (RSSD 65559)