Great Plains Bank: how it compares with its peers
Against 17 SD banks with half to twice its assets, Great Plains Bank's strongest measure in Q2 2026 is net interest margin (4.10% vs. a 3.77% peer median). Its weakest relative measure is assets per employee ($7.2M vs. $8.2M).
| Measure | Great Plains Bank | Peer median | Rank |
|---|---|---|---|
| Return on assets Annualized net income over average assets. | 1.85% | 1.63% | Middle third Ahead of 53% of peers |
| Net interest margin Annualized net interest income over earning assets. | 4.10% | 3.77% | Middle third Ahead of 59% of peers |
| Efficiency ratio Noninterest expense per dollar of revenue. Lower is better. | 52.71% | 54.52% | Middle third Ahead of 59% of peers |
| Assets per employee Total assets over full-time-equivalent staff. | $7.2M | $8.2M | Bottom third Ahead of 29% of peers |
| Loans to deposits Net loans and leases over total deposits. | 89.35% | 66.85% | Context |
What it means for lending operations
Its efficiency ratio of 52.71% is better than the 54.52% 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
- Citizens State Bank, of Arlington Arlington, SD · $153M
- First State Bank of Roscoe Roscoe, SD · $147M
- Heartland State Bank Redfield, SD · $154M
- DNB NATIONAL BANK Clear Lake, SD · $124M
- Farmers and Merchants State Bank Plankinton, SD · $180M
Questions about Great Plains Bank
How big is Great Plains Bank?
Great Plains Bank, established in 1920, is headquartered in Eureka, SD. It reported $150M in total assets in its Q2 2026 FDIC call report and operates 3 offices.
What is Great Plains Bank's return on assets?
1.85% annualized in Q2 2026, against a 1.63% median for 17 SD banks with half to twice its assets, ahead of 53% of them.
What is Great Plains Bank's efficiency ratio?
52.71% in Q2 2026: it spent about 53 cents in noninterest expense for each dollar of revenue. The peer median is 54.52%, and lower is better.
Is Great Plains Bank growing its loans?
Net loans grew 3.7% over the year to Q2 2026, while deposits grew 3.3%.
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 SD 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 South Dakota bank ranked.