Bank · FDIC insured
Keystone Savings Bank
A $200.8M bank headquartered in Marengo, IA, with 5 branches in Iowa. Best rates: CDs 3.94% APY.
Rates
No Carrot Score yet: it needs scores for at least two of CDs, savings, auto loans and credit cards. CDs: not enough terms or balances published to score. Savings: rates are not published online. Auto loans: no rates found on its website. Credit cards: only rates Carrot doesn’t compare are published (introductory, refinance or business rates, or none at all).
- CDs—3.94%CD rates →
Deposits are federally insured by the FDIC up to $250,000 per depositor.
About Keystone Savings Bank
Keystone Savings Bank opened on April 27, 1935, to meet community needs after two local banks failed during the Great Depression.
Owned by local shareholders primarily from Benton County, Iowa, the bank has expanded with branches in Marengo, Center Point, Pleasant Hill, and Victor.
- Headquarters
- 330 Western Avenue, Marengo, IA 52301
- FDIC certificate
- 17993 ↗
Branches
5 branches in Iowa
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Iowa
5 branches
Marengo area · 1
- Keystone Savings BankMain office330 Western Avenue, Marengo, IA 52301Directions
Center Point area · 1
- Center Point Branch807 Rosedale Dr, Center Point, IA 52213Directions
Keystone area · 1
- Keystone Branch81 Main St, Keystone, IA 52249Directions
Pleasant Hill area · 1
- Pleasant Hill Branch6871 Ne 12th Ave, Pleasant Hill, IA 50327Directions
Victor area · 1
- Victor Branch606 3rd St, Victor, IA 52347Directions
Walk-in offices from the FDIC directory as of September 4, 2026. Directions open Google Maps. A nearby branch doesn’t mean you can join or open an account.
Financial details
| Measure | This bank | Peers’ middle | Strongest quarter |
|---|---|---|---|
| CapitalLeverage ratio | 11.29% | 10.98% | 13.00% or more |
| Troubled loansNoncurrent | 1.44% | 0.42% | 0.09% or less |
| ProfitabilityReturn on assets | 0.50% | 1.24% | 1.68% or more |
| LendingLoans per $100 deposited | $75 | $81 | — |
- CapitalLeverage ratio11.29%Peers’ middle 10.98% · Top 25% 13.00%+
- Troubled loansNoncurrent1.44%Peers’ middle 0.42% · Top 25% ≤0.09%
- ProfitabilityReturn on assets0.50%Peers’ middle 1.24% · Top 25% 1.68%+
- LendingLoans per $100 deposited$75Peers’ middle $81
Compared with the 2,650 banks with $100 million to $1 billion in assets. The strongest quarter is what the best 25% of them reach: more capital and profit, fewer troubled loans. Lending has no better end.Troubled loans are noncurrent: 90 or more days late, or no longer earning interest.
Regulators’ own ratings of Keystone Savings Bank are confidential. These figures are what it reports to the FDIC each quarter, set beside its peers; they aren’t a rating.