Compare Bank & Credit Union Rates
Best high-yield savings rates
Compare published savings yields, money market accounts included, with minimums, requirements, collection dates and original sources.
Top savings rates
Showing 1–15 results in Grimes, IA
- 2.25%APY$225 a year on $10,000
Requirements
Product: Must be enrolled in eStatements by end of month to earn dividends. Available exclusively to consumer members (business, fiduciary, minor, estate, trust accounts not eligible). Must be opened online via Dupaco's Online Application; limited to one account per SSN. Account balance limited to $1,000,000 inclusive of principal and dividend accruals.
Offer: Requires enrollment in eStatements to receive dividends. Online-only account.
2.23% interest rate · Balance cap $1,000,000 · No monthly fee · Effective Jun 2, 2026
Rate checked
More details - 2.00%APY$200 a year on $10,000with conditions
Requirements
Product: Opening deposit of at least $25 required. Monthly maintenance fee of $5 is waived for owners of a U.S. Bank Smartly Checking account, Safe Debit account, U.S. Bank Smartly Visa Signature Card, or accounts with a minor under age 18. Relationship rates require maintaining an eligible qualifying product and vary by Combined Qualifying Balance (CQB).
Offer: Relationship rate for Combined Qualifying Balance (CQB) under $5,000. Requires an eligible open and in-good-standing account (U.S. Bank Smartly Checking, Safe Debit, or U.S. Bank Smartly Visa Signature Card).
Qualified rate · 1.00% interest rate · $5 monthly fee · Effective Oct 5, 2026
Rate by balance
Rate by balance for U.S. Bank Smartly Savings Balance APY Up to $5,000 1.00% $5,000 – $25,000Your amount 2.00% $25,000 – $50,000 3.50% $50,000 – $100,000 3.50% $100,000 – $99,999,999,999 3.50% Rate checked
More details - 2.00%APY$200 a year on $10,000with conditions
Requirements
Product: Variable rate account. Monthly maintenance fee of $5 is waived for owners of a Bank Smartly Checking account, Safe Debit account, Bank Smartly Visa Signature Card, or accounts with a minor under age 18. Higher relationship rates require maintaining an eligible product (Bank Smartly Checking, Safe Debit account, or Bank Smartly Visa Signature Card) and are determined by Combined Qualifying Balance (CQB).
Offer: Relationship rate for CQB Under $5,000. Requires qualifying relationship product.
Qualified rate · 1.00% interest rate · $5 monthly fee · Effective Oct 5, 2026
Rate by balance
Rate by balance for Bank Smartly Savings Balance APY Up to $5,000 1.00% $5,000 – $25,000Your amountRelationship rate for CQB $5,000 to $24,999.99. 2.00% $25,000 – $50,000Relationship rate for CQB $25,000 to $49,999.99. 3.50% $50,000 – $100,000Relationship rate for CQB $50,000 to $99,999.99. 3.50% $100,000 and upRelationship rate for CQB $100,000 and above. 3.50% Rate checked
More details - City State BankAdvantage Money MarketAdvantage Money Market · $10,000 min · 1.00%–3.05% by balance
Bank · 1 branch
1.75%APY$175 a year on $10,000Requirements
Product: Requires at least one monthly direct deposit in a City State Bank account. Rates are variable and subject to change without notice after account is opened. Fees may reduce earnings.
Offer: Requires at least one monthly direct deposit in a City State Bank account. Rates are variable and subject to change without notice after account is opened. Fees may reduce earnings.
1.00% interest rate · Effective Sep 25, 2026
Rate by balance
Rate by balance for Advantage Money Market Balance APY Up to $10,000 1.00% $10,000 – $100,000Your amount 1.75% $100,000 – $250,000 2.20% $250,000 and up 3.05% Rate checked
More details - GreenState Credit UnionImpact Money MarketImpact Money Market · $2,500 min · 1.45%–2.45% by balance
Credit union · 1 branch
1.45%APY$145 a year on $10,000Requirements
Product: Membership required with a minimum $5 share deposit. Variable rate determined based on average daily balance maintained for the month. $10.00 per withdrawal or transfer after 6 per month. Minimum $2,500 daily balance to avoid $10 monthly service fee.
Offer: Minimum $2,500 daily balance to avoid $10 monthly service fee.
$10 monthly fee · Effective Oct 5, 2026
Rate by balance
Rate by balance for Impact Money Market Balance APY $2,500 – $49,999Your amount 1.45% $50,000 – $99,999 1.65% $100,000 – $249,999 1.85% $250,000 – $499,999 2.05% $500,000 – $999,999 2.25% $1,000,000 and up 2.45% Rate checked
More details - 1.25%APY$125 a year on $10,000
Requirements
Product: Check writing available. Monthly maintenance fee of $12.99 is waived with a $1,000 minimum daily balance.
Offer: Benefits Banking Loyalty Program Platinum Tier (Base Interest Rate + 0.50%). Monthly fee of $12.99 waived with $1,000 minimum daily balance.
1.20% interest rate · $12.99 monthly fee · Effective Oct 16, 2026
Rate by balance
Rate by balance for Investment Savings Balance APY Up to $5,000 1.20% $5,000 – $10,000 1.23% $10,000 – $50,000Your amount 1.25% $50,000 – $100,000 1.43% $100,000 and up 1.45% Rate checked
More details - 1.25%APY$125 a year on $10,000
Requirements
Product: Rates are variable and subject to change without notice after account is opened. Fees may reduce earnings.
Offer: Rates are variable and subject to change without notice after account is opened. Fees may reduce earnings.
1.00% interest rate · Effective Sep 25, 2026
Rate by balance
Rate by balance for Money Market Balance APY Up to $2,500 1.00% $2,500 – $25,000Your amount 1.25% $25,000 – $100,000 1.40% $100,000 and up 1.60% Rate checked
More details - 1.15%APY$115 a year on $10,000
Requirements
Product: Check writing available. Monthly maintenance fee of $12.99 is waived with a $1,000 minimum daily balance.
Offer: Benefits Banking Loyalty Program Gold Tier (Base Interest Rate + 0.40%). Monthly fee of $12.99 waived with $1,000 minimum daily balance.
1.10% interest rate · $12.99 monthly fee · Effective Oct 16, 2026
Rate by balance
Rate by balance for Investment Savings Balance APY Up to $5,000 1.10% $5,000 – $10,000 1.13% $10,000 – $50,000Your amount 1.15% $50,000 – $100,000 1.33% $100,000 and up 1.35% Rate checked
More details - 1.05%APY$105 a year on $10,000
Requirements
Product: Monthly maintenance fee of $6.99 is waived with a $200 minimum daily balance or for individuals age 55 and over.
Offer: Benefits Banking Loyalty Program Platinum Tier (Base Interest Rate + 0.50%). Monthly fee of $6.99 waived with $200 minimum daily balance or for individuals age 55 and over.
1.05% interest rate · $6.99 monthly fee · Effective Oct 16, 2026
Rate checked
More details - 1.00%APY$100 a year on $10,000
Requirements
Product: Rates are variable and subject to change without notice after account is opened.
Offer: $10 maintenance fee is applied per statement cycle if minimum daily balance falls below $100. Fees may reduce earnings.
1.00% interest rate · $10 monthly fee · Effective Sep 25, 2026
Rate checked
More details - 0.95%APY$95 a year on $10,000
Requirements
Product: Monthly maintenance fee of $6.99 is waived with a $200 minimum daily balance or for individuals age 55 and over.
Offer: Benefits Banking Loyalty Program Gold Tier (Base Interest Rate + 0.40%). Monthly fee of $6.99 waived with $200 minimum daily balance or for individuals age 55 and over.
0.95% interest rate · $6.99 monthly fee · Effective Oct 16, 2026
Rate checked
More details - Charter BankCharter Money MarketCharter Money Market · $2,500 min · 0.75%–1.10% by balance
Bank · 1 branch
0.90%APY$90 a year on $10,000Requirements
Product: Earn higher returns with tiered interest rates. $10 monthly service charge if minimum daily balance of $2,500 is not met. Free e-Statements; $3 for Paper Statements.
Offer: Balance < $10,000. $10 monthly service charge if minimum daily balance of $2,500 is not met.
0.75% interest rate · $10 monthly fee · Effective Oct 9, 2026
Rate by balance
Rate by balance for Charter Money Market Balance APY Any balance 0.75% $10,000 – $24,999Your amount 0.90% $25,000 – $49,999 1.10% Rate checked
More details - 0.85%APY$85 a year on $10,000
Requirements
Product: $1,000 minimum daily balance to avoid $12.50 monthly fee. Avoid $5 monthly paper statement fee by enrolling in free eStatements. Interest compounded monthly.
Offer: $12.50 monthly fee if daily balance falls below $1,000. Interest compounded monthly.
0.85% interest rate · Compounded monthly · $12.50 monthly fee · Effective Nov 12, 2024
Rate by balance
Rate by balance for Money Market Balance APY Up to $25,000Your amount 0.85% $25,000 – $75,000 1.00% $75,000 – $250,000 1.87% $250,000 and up 2.40% Rate checked
More details - 0.75%APY$75 a year on $10,000
Requirements
Product: Check writing available. Monthly maintenance fee of $12.99 is waived with a $1,000 minimum daily balance.
Offer: Base Rate (Consumer Rate Sheet) / Benefits Banking Loyalty Program Bronze Tier and Silver Tier APY. Monthly fee of $12.99 waived with $1,000 minimum daily balance.
0.70% interest rate · $12.99 monthly fee · Effective Oct 16, 2026
Rate by balance
Rate by balance for Investment Savings Balance APY Up to $5,000 0.70% $5,000 – $10,000 0.73% $10,000 – $50,000Your amount 0.75% $50,000 – $100,000 0.93% $100,000 and up 0.95% Rate checked
More details - 0.65%APY$65 a year on $10,000
Requirements
Offer: Variable rate account; rate and APY may change after opening. Fees could reduce earnings. $5 monthly service charge waived if minimum daily balance of $250 is met. Includes 6 free withdrawals or debits per month ($3 for each additional).
0.65% interest rate · $5 monthly fee · Effective Oct 9, 2026
Rate checked
More details
Carrot Score rates each institution on all its CD, savings, auto loan and credit card rates, not just the account shown. How we rank
What savings accounts pay in Grimes, IA
29 accounts at 9 banks and credit unions · checked Oct 16
- Typical
- 0.65%
- Top 10% from
- 1.80%
- Banks, typical
- 0.88%
- Credit unions, typical
- 0.15%
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Des Moines, IA metro
Top Carrot institutions
Ranked across their CDs, savings, auto loans and credit cards. How scores work
- Collins Community Credit UnionCredit union · 2 branches
- Serve Credit UnionCredit union · 2 branches
- Advantage Credit UnionCredit union · 1 branch