Security Savings Bank
Canton, South Dakota, Lincoln County
$557M in total assets, the 1,680th largest of 4,309 US banks and 22nd of 58 headquartered in South Dakota.
- FDIC certificate
- 15734
- Established
- 1920
- Owned by
- Larch Bcorp Inc
- Primary regulator
- FDIC
- Website
- www.bankwithssb.com
At a glance
Compared with 24 banks headquartered in South Dakota with $100 million to $1 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $557M | 92% | $253M | |
| Loans | $427M | 92% | $165M | |
| Deposits | $495M | 92% | $218M | |
| Return on assets | 0.86% | 21% | 1.66% | |
| Net interest margin | 3.34% | 25% | 3.79% | |
| Efficiency ratio | 71.6% | 83% | 53.9% | |
| Equity to assets | 10.31% | 50% | 10.43% | |
| Loans to deposits | 86% | 52% | 82% |
Growth
Total assets grew 1.9% a year over the last 5 years and 10.5% a year over 10 years, including 1 acquisition in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Jan 2019 | Exchange State Bank Luverne, MN, an affiliate under the same holding company | $226M |
| Apr 2007 | George State Bank George, IA | $42M |
| Feb 1985 | Inwood State Bank Inwood, IA | $8M |
Where they operate
8 branches in 5 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Lyon County, IA | $173M | 22.8% | 2 of 6 |
| Rock County, MN | $146M | 35.4% | 1 of 4 |
| Lincoln County, SD | $67M | 0.0% | 16 of 26 |
| Minnehaha County, SD | $65M | 0.0% | 18 of 26 |
| Nobles County, MN | $43M | 5.4% | 7 of 10 |
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 gain of 4 branches since 2016 (4 to 8, +100.0%). 1 opened, 3 acquired, 0 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 4 | |||
| 2018 | Opened Sioux Falls | 1 | 0 | +1 | 5 |
| 2019 | Acquired Exchange State Bank | 3 | 0 | +3 | 8 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Farmland | 39% | 21% | |
| Commercial real estate | 18% | 13% | |
| Agricultural | 18% | 30% | |
| 1-4 family residential | 12% | 13% | |
| Business (C&I) | 7% | 10% | |
| Multifamily | 3% | 4% | |
| Construction and land | 1% | 3% | |
| Consumer | 1% | 4% | |
| Other | 0% | 1% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Other interest-bearing | 54% | 44% | |
| Time deposits | 31% | 37% | |
| Noninterest-bearing | 15% | 18% |
Brokered deposits are 0.5% of deposits (peers 3.3%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.09% | 0.21% |
| Net charge-offs, annualized | -0.00% | 0.00% |
| Reserves to loans | 1.07% | 1.28% |
| Leverage ratio | 9.38% | 10.77% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in South Dakota
Largest competitors in Lyon County, IA
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/banks/security-savings-bank-canton-sd