Our Mason City State Street location is currently under construction.
During this time the lobby will be closed and the Drive-Up & ATM/ITM will remain open. For full banking services, please visit the Mason City West location at 2601 4th St SW Mason City, IA. Thank you for your patience!
Our Platinum Savings account earns tiered interest, so the more you save, the more interest you earn.
Maintain a $10,000 average collected balance, and we’ll waive the $25.00 monthly service charge.
| Account | Daily minimum balance to earn APY | Interest Rate | APY |
|---|---|---|---|
| Platinum Savings**** | $9,999.99 and below | 0.00% | 0.00% |
| Platinum Savings**** | $10,000–$49,999.99 | 0.65% | 0.65% |
| Platinum Savings**** | $50,000–$99,999.99 | 0.80% | 0.80% |
| Platinum Savings**** | $100,000–$249,999.99 | 1.65% | 1.66% |
| Platinum Savings**** | $250,000–$999,999.99 | 2.30% | 2.32% |
| Platinum Savings**** | $1,000,000–$1,999,999.99 | 3.15% | 3.20% |
| Platinum Savings**** | $2,000,000 and $4,999,999.99 | 3.65% | 3.71% |
| Platinum Savings**** | $5,000,000 and above | 4.05% | 4.13% |
