Plains Commerce Bank
Sioux Falls, South Dakota, Minnehaha County
$1.3B in total assets, the 865th largest of 4,309 US banks and 18th of 58 headquartered in South Dakota.
- FDIC certificate
- 1678
- Established
- 1931
- Owned by
- Plains Commerce Financial Inc
- Primary regulator
- FDIC
- Website
- www.plainscommerce.com
At a glance
Compared with 16 banks headquartered in South Dakota with $1 billion to $10 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $1.3B | 6% | $2.2B | |
| Loans | $1.1B | 25% | $1.6B | |
| Deposits | $1.1B | 12% | $1.9B | |
| Return on assets | 1.41% | 50% | 1.41% | |
| Net interest margin | 3.63% | 19% | 4.02% | |
| Efficiency ratio | 84.2% | 94% | 58.5% | |
| Equity to assets | 10.77% | 56% | 10.12% | |
| Loans to deposits | 101% | 93% | 87% |
Growth
Total assets grew 4.1% a year over the last 5 years and 7.9% a year over 10 years, without acquisitions.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Jan 2001 | The Peoples Bank Aberdeen, SD | $53M |
Where they operate
8 branches in 6 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Minnehaha County, SD | $409M | 0.1% | 9 of 26 |
| Brown County, SD | $285M | 14.3% | 2 of 12 |
| Codington County, SD | $169M | 10.6% | 5 of 10 |
| Potter County, SD | $124M | 60.2% | 1 of 3 |
| Davison County, SD | $66M | 5.7% | 7 of 8 |
| Spink County, SD | $25M | 9.7% | 6 of 6 |
Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.
Branch history since 2016
Net loss of 1 branch since 2016 (9 to 8, −11.1%). 1 opened, 0 acquired, 2 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 9 | |||
| 2020 | Opened Sioux Falls | 1 | 0 | +1 | 10 |
| 2022 | Closed Watertown | 0 | 1 | −1 | 9 |
| 2023 | Closed Bismarck | 0 | 1 | −1 | 8 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| 1-4 family residential | 39% | 10% | |
| Commercial real estate | 19% | 24% | |
| Agricultural | 13% | 8% | |
| Construction and land | 7% | 7% | |
| Farmland | 7% | 7% | |
| Business (C&I) | 6% | 19% | |
| Multifamily | 4% | 8% | |
| Consumer | 1% | 13% | |
| Other | 5% | 4% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Time deposits | 42% | 24% | |
| Other interest-bearing | 40% | 43% | |
| Noninterest-bearing | 18% | 32% |
Brokered deposits are 10.8% of deposits (peers 7.7%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 1.15% | 0.70% |
| Net charge-offs, annualized | 0.02% | 0.23% |
| Reserves to loans | 0.97% | 1.25% |
| Leverage ratio | 10.03% | 10.39% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in South Dakota
Largest competitors in Minnehaha County, SD
Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/plains-commerce