Branch Network
Security State Bank of Marine Locations & Branches Marine on Saint Croix, Minnesota
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Security State Bank of Marine operates 4 branches from its headquarters in Marine on Saint Croix, MN, .
Security State Bank of Marine branch network
All 4 branches are in MINNESOTA, across 4 cities. Its largest office by deposits is its main office in Marine On St. Croix, MN, with $77.6M (37.7% of its branch deposits). It had the same number of branches on June 30, 2025.
Security State Bank of Marine at a glance
Its CET1 capital ratio was 15.08% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $232.5M
- CET1 ratio, Q2 2026
- 15.08%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1919
Full financial profile · Is Security State Bank of Marine safe? · Security State Bank of Marine 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 |
|---|---|---|---|
| State: MN (4 branches) | 134 of 277 | <0.1% | $206.1M |
Ranked by total assets among banks headquartered in the state: Largest banks in Minnesota.
Share by county and metro area
Security State Bank of Marine'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 |
|---|---|---|---|---|
| Washington, MN (3 branches) | 14 of 24 | 2.1% | $148.5M | $7.09B |
| Chisago, MN (1 branch) | 6 of 7 | 7.4% | $57.6M | $781.1M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Minneapolis-St. Paul-Bloomington, MN-WI (4 branches) | 67 of 124 | <0.1% | $206.1M | $252.68B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Security State Bank of Marine (main office) | Marine On St. Croix, MN | 55047 | $77.6M |
| Chisaago Lakes Branch | Lindstrom, MN | 55045 | $57.6M |
| Scandia Branch | Scandia, MN | 55073 | $42.6M |
| Forest Lake Branch | Forest Lake, MN | 55025 | $28.3M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 10163) · FFIEC NIC profile (RSSD 990053)