Best credit union CD rates in Iowa
Dupaco Community Credit Union has the highest APY in this tracked sample of 8 institutions: 4.50% APY for 25 months, verified October 22, 2026.
These institutions list Iowa in their operating coverage. Regional quotes apply only to the displayed ZIP, not the entire state. Only credit unions are included; share certificates are the credit union equivalent of bank CDs, and membership requirements differ by institution. Nationwide credit unions appear alongside local ones. We show each institution's highest matching APY, rather than an exhaustive market ranking. All quotes were verified within the last seven days. Membership, new-money and relationship requirements may apply; confirm eligibility and terms with the institution.
| Institution | Term / product | Minimum | Who can open | APY | Verified / evidence |
|---|---|---|---|---|---|
| Dupaco Community Credit Union | 25 months25 Month Fixed Jumbo Certificate Special · Promotional | $100,000 | Membership required · branches in IA, IL, WI | 4.50% | October 22, 2026 Source text |
| Empeople Credit Union | 18 months18 Month Certificate · Standard | $500 | Membership required · branches in 7 states | 4.40% | October 22, 2026 Source text |
| DuTrac Community Credit Union | 19 monthsCertificate of Deposit - 19 Month Special · Promotional | $500 | Membership required · branches in IA, IL | 4.35% | October 22, 2026 Source text |
| Marine Credit Union | 13 monthsCertificate Special · Promotional | $1,000 | Membership required · branches in IA, WI | 4.25% | October 22, 2026 Source text |
| Vibrant Credit Union | 6 months6-Month CD Special · Promotional | $5 | Membership required · branches in IA, IL | 4.25% | October 22, 2026 Source text |
| Community 1st Credit Union (Iowa) | 13 months13 Month Certificate Account Special · Promotional | $1,000 | Membership required · branches in IA | 4.15% | October 22, 2026 Source text |
| PenFed Credit Union | 60 monthsMoney Market Certificate · Promotional | $1,000 | Nationwide · membership required | 3.50% | October 22, 2026 Source text |
| Centris Federal Credit Union | 7 monthsJumbo Certificate · Standard | $90,000 | Membership required · branches in IA, NE | 3.35% | October 22, 2026 Source text |
Other Iowa institutions we don't verify yet
These banks and credit unions serve Iowa, but we do not publish their rates, so they are not ranked above. Check their current rates on their own websites.
- Old National Bank Bank · HQ Evansville, IN Its website blocks automated access, so we cannot verify its rates daily. Checked October 23, 2026. Current rates on www.oldnational.com
Compare with public benchmarks
The highest tracked quote is 4.50% APY for 25 months. The Treasury APY-equivalent for a similar term is 4.87% (2026-10-21). The FDIC national average for a similar term is 1.55% (2026-10-19). Benchmark terms may differ; Treasury interest is exempt from state income tax.
Common questions
Which institution has the highest tracked rate?
Dupaco Community Credit Union has the highest APY in this tracked sample of 8 institutions: 4.50% APY for 25 months, verified October 22, 2026.
Who can open these CDs or share certificates?
Check the displayed minimum deposit and location. Credit union membership, new-money and relationship requirements may apply; confirm terms with the institution.
How current are these rates?
Every quote in this collection was verified within the last seven days. Source snapshots and verification dates appear in the table; rates may change before you open an account.
Related pages
Calculate CD interest · Compare CD and Treasury returns after tax · Recent rate changes