Castle Rock Bank: how it compares with its peers
Against 93 MN banks with half to twice its assets, Castle Rock Bank's strongest measure in Q2 2026 is efficiency ratio (45.14% vs. a 61.83% peer median). Its weakest relative measure is net interest margin (2.86% vs. 3.98%).
| Measure | Castle Rock Bank | Peer median | Rank |
|---|---|---|---|
| Return on assets Annualized net income over average assets. | 1.45% | 1.30% | Middle third Ahead of 62% of peers |
| Net interest margin Annualized net interest income over earning assets. | 2.86% | 3.98% | Bottom third Ahead of 4% of peers |
| Efficiency ratio Noninterest expense per dollar of revenue. Lower is better. | 45.14% | 61.83% | Top third Ahead of 96% of peers |
| Assets per employee Total assets over full-time-equivalent staff. | $11.7M | $7.5M | Top third Ahead of 94% of peers |
| Loans to deposits Net loans and leases over total deposits. | 51.28% | 80.66% | Context |
What it means for lending operations
Its efficiency ratio of 45.14% is better than the 61.83% peer median. Banks that already run lean usually find their next gains in loan growth: faster digital applications and fewer borrowers abandoning a slow document chase.
Banks closest in size
- The First National Bank of Milaca Milaca, MN · $293M
- Lake Central Bank Annandale, MN · $291M
- Citizens State Bank of Roseau Roseau, MN · $291M
- Liberty Bank Minnesota Saint Cloud, MN · $290M
- Minnesota National Bank Sauk Centre, MN · $298M
- PrinsBank Prinsburg, MN · $308M
Questions about Castle Rock Bank
How big is Castle Rock Bank?
Castle Rock Bank, established in 1916, is headquartered in Castle Rock, MN. It reported $294M in total assets in its Q2 2026 FDIC call report and operates 3 offices.
What is Castle Rock Bank's return on assets?
1.45% annualized in Q2 2026, against a 1.30% median for 93 MN banks with half to twice its assets, ahead of 62% of them.
What is Castle Rock Bank's efficiency ratio?
45.14% in Q2 2026: it spent about 45 cents in noninterest expense for each dollar of revenue. The peer median is 61.83%, and lower is better.
Is Castle Rock Bank growing its loans?
Net loans grew 4.7% over the year to Q2 2026, while deposits grew 5.9%.
Sources and method
Figures are from the FDIC’s public call report data for the quarter ending 06/30/2026, via FDIC BankFind. Return on assets and net interest margin are annualized year to date. Peers are MN banks with half to twice its assets in the same quarter, excluding this bank. The page refreshes daily, so new quarters appear as banks file. Compare another bank or see every Minnesota bank ranked.