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Castle Rock Bank Locations & Branches Castle Rock, Minnesota
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Castle Rock Bank operates 3 branches from its headquarters in Castle Rock, MN, .
Castle Rock Bank branch network
All 3 branches are in MINNESOTA, across 3 cities. Its largest office by deposits is the Detached Facility office in Farmington, MN, with $151.2M (60.6% of its branch deposits). It had the same number of branches on June 30, 2025.
Castle Rock Bank at a glance
Its CET1 capital ratio was 26.35% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $293.5M
- CET1 ratio, Q2 2026
- 26.35%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1916
Full financial profile · Is Castle Rock Bank safe? · Castle Rock Bank 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: Castle Rock, MN (1 branch) | 1 of 1 | 100.0% | $88.7M |
| State: MN (3 branches) | 123 of 277 | <0.1% | $249.6M |
Ranked by total assets among banks headquartered in the state: Largest banks in Minnesota.
Share by county and metro area
Castle Rock Bank'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 |
|---|---|---|---|---|
| Dakota, MN (3 branches) | 8 of 32 | 2.6% | $249.6M | $9.72B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Minneapolis-St. Paul-Bloomington, MN-WI (3 branches) | 60 of 124 | <0.1% | $249.6M | $252.68B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Detached Facility | Farmington, MN | 55024 | $151.2M |
| Castle Rock Bank (main office) | Castle Rock, MN | 55010 | $88.7M |
| Randolph Branch | Randolph, MN | 55065 | $9.7M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 1913) · FFIEC NIC profile (RSSD 152253)