Compare Bank & Credit Union Rates
Best savings rates in Grinnell, IA
Compare published savings yields, money market accounts included, with minimums, requirements, collection dates and original sources.
Top savings rates
Showing 1–15 results in Grinnell, IA
- 2.75%APY$275 a year on $10,000
Requirements
Product: New or existing account or line of service with us is required to qualify/open. Monthly maintenance service charge of $2.50 waived if account owner is under 23 years of age or a $100 average daily balance is maintained for the month.
Offer: Interest compounded quarterly. No set term / no maximum deposit value. Minimum to obtain APY is $2,500. $2.50 monthly maintenance service charge waived if account owner is under 23 years of age or $100 average daily balance is maintained.
Compounded quarterly · $2.50 monthly fee · Effective Jun 24, 2026
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 - 1.00%APY$100 a year on $10,000
Requirements
Product: $100 Average Available Balance (AAB) to waive $2.00 monthly low balance service fee (no minimum AAB for children under 18; opening deposit $25 for children under 18). 3 withdrawals/debits per statement cycle at no charge; excess withdrawal fee $1.00 each.
Offer: Tier 1; Available Balance (AB) to earn rate; $2.00 low balance fee if AAB < $100.
0.75% interest rate · Effective Oct 1, 2026
Rate by balance
Rate by balance for Personal Savings Balance APY Up to $500 0.75% $500 – $5,000Tier 2; 0.75% $5,000 – $50,000Your amountTier 3; 1.00% $50,000 – $100,000Tier 4; 1.26% $100,000 – $200,000Tier 5; 1.51% $200,000 and upTier 6; 1.76% Rate checked
More details - Lincoln Savings BankPremier Money MarketPremier Money Market · $50 min · 0.60%–1.51% by balance
Bank · 1 branch
0.80%APY$80 a year on $10,0000.60% interest rate · Effective Jun 24, 2026
Rate by balance
Rate by balance for Premier Money Market Balance APY Up to $2,500 0.60% $2,500 – $100,000Your amount 0.80% $100,000 – $250,000 0.90% $250,000 – $500,000 1.21% $500,000 – $1,000,000 1.31% $1,000,000 and up 1.51% Rate checked
More details - Community 1st Credit UnionMoney Market AccountMoney Market Account · $2,500 min · 0.70%–1.75% by balance
Credit union · 1 branch
0.70%APY$70 a year on $10,000Requirements
Product: Dividends are calculated by the daily balance method and compounded monthly. Minimum daily balance to earn must be maintained each day to obtain disclosed APY (fee if balance drops below minimum). Rates may vary after account opening.
Offer: Minimum daily balance to earn must be maintained each day to obtain disclosed APY.
0.70% interest rate · Compounded monthly
Rate by balance
Rate by balance for Money Market Account Balance APY $2,500 and upYour amount 0.70% $25,001 and up 0.85% $50,001 and up 1.15% $100,001 and up 1.40% $250,001 and up 1.75% Rate checked
More details - 0.50%APY$50 a year on $10,000with conditions
Requirements
Product: Must be linked to either a C1st Cash or C1st Cash Back checking account. To qualify per monthly qualification cycle, you must: 1) make 15 debit card (non-ATM) transactions; and 2) be enrolled in and receive eStatements. Monthly qualification cycle is defined as the calendar month.
Offer: Qualifications not met in either checking account; all balances in the C1st Saver earn 0.03% APY.
Qualified rate · 0.03% interest rate
Rate by balance
Rate by balance for C1st Saver Balance APY Any balance 0.03% Up to $15,000Your amountQualifications met (15 debit card non-ATM transactions and eStatements enrolled/received). 0.50% $15,001 and upQualifications met. Balances over $15,000 earn 0.25% APY on the portion of the balance over $15,000, resulting in 0.50% APY to 0.28% APY depending on the balance. 0.25% Rate checked
More details - 0.25%APY$25 a year on $10,000
0.25% interest rate · Effective Sep 28, 2026
Rate checked
More details - 0.25%APY$25 a year on $10,000
Requirements
Product: $2.50 monthly maintenance service charge is waived if a $100.00 (or greater) average daily balance is maintained for the month or for individuals under 23 years of age.
Offer: Interest compounded quarterly. Minimum daily balance of $0.01 to obtain APY. Monthly fee waived with $100 average daily balance or if owner is under 23 years of age.
0.25% interest rate · Compounded quarterly · $2.50 monthly fee · Effective Jun 24, 2026
Rate checked
More details - 0.15%APY$15 a year on $10,000
Requirements
Product: Dividends will be compounded and credited quarterly (rather than monthly). If during any time your account falls below the required minimum daily balance, your account will be subject to a service fee.
Offer: Dividends compounded and credited quarterly. Service fee applies if balance falls below required minimum daily balance.
0.15% interest rate
Rate checked
More details - 0.15%APY$15 a year on $10,000
Requirements
Product: Dividends will be compounded and credited quarterly (rather than monthly). If during any time your account falls below the required minimum daily balance, your account will be subject to a service fee.
Offer: Dividends compounded and credited quarterly. Service fee applies if balance falls below required minimum daily balance.
0.15% interest rate
Rate checked
More details - 0.10%APY$10 a year on $10,000
Requirements
Product: $5 monthly service charge waived if a $200 minimum daily balance is maintained in the month, or for clients under 24 years of age. $10 fee for excess withdrawals over 6 per month.
0.05% interest rate · $5 monthly fee · Effective Sep 28, 2026
Rate by balance
Rate by balance for Regular Savings Balance APY Up to $10,000 0.05% $10,000 – $50,000Your amount 0.10% $50,000 and up 0.25% Rate checked
More details - 0.05%APY$5 a year on $10,000with conditions
Requirements
Product: Savings with check-writing capability. $12 monthly service fee can be avoided with a $3,500 minimum daily balance each fee period. Relationship rates require linking to an eligible checking account (such as Prime Checking or Premier Checking).
Offer: Relationship rate; requires linking to a Premier Checking account. $12 monthly service fee avoided with $3,500 minimum daily balance.
Qualified rate · 0.05% interest rate · $12 monthly fee · Effective Oct 10, 2026
Rate by balance
Rate by balance for Wells Fargo Platinum Savings Balance APY Any balanceYour amount 0.05% $25,000 and upPromotional rate accurate as of 2026-10-07 for new Platinum Savings accounts for customers who do not have an existing Wells Fargo consumer savings account (or ownership in past 30 days). $12 monthly fee avoided with $3,500 minimum daily balance. 3.25% Rate checked
More details - 0.02%APY$2 a year on $10,000with conditions
Requirements
Product: Savings with check-writing capability. $12 monthly service fee can be avoided with a $3,500 minimum daily balance each fee period. Relationship rates require linking to an eligible checking account (such as Prime Checking or Premier Checking).
Offer: Relationship rate; requires linking to a Prime Checking account. $12 monthly service fee avoided with $3,500 minimum daily balance.
Qualified rate · 0.02% interest rate · $12 monthly fee · Effective Oct 10, 2026
Rate checked
More details - 0.01%APY$1 a year on $10,000
Requirements
Product: Standard savings account. $5 monthly service fee can be avoided with $300 minimum daily balance, 1 automatic transfer of $25+ each fee period from linked Wells Fargo checking, 1 automatic transfer of $1+ each business day from linked checking, 1+ Save As You Go transfers from linked checking, or if the primary account owner is 24 years old or under.
Offer: Standard rate. Fee waived with $300 minimum daily balance, 1 automatic transfer of $25+ per fee period, 1 daily automatic transfer of $1+ each business day, 1+ Save As You Go transfer, or primary owner age 24 or under.
0.01% interest rate · $5 monthly fee · Effective Oct 10, 2026
Rate checked
More details - 0.01%APY$1 a year on $10,000with conditions
Requirements
Product: Savings with check-writing capability. $12 monthly service fee can be avoided with a $3,500 minimum daily balance each fee period. Relationship rates require linking to an eligible checking account (such as Prime Checking or Premier Checking).
Offer: Standard rate. $12 monthly service fee avoided with $3,500 minimum daily balance.
Qualified rate · 0.01% interest rate · $12 monthly fee · Effective Oct 10, 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 Grinnell, IA
16 accounts at 6 banks and credit unions · checked Oct 16–22
- Typical
- 0.20%
- Top 10% from
- 1.23%
- Banks, typical
- 0.10%
- Credit unions, typical
- 0.50%
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Iowa
Top Carrot institutions
Ranked across their CDs, savings, auto loans and credit cards. How scores work
- Collins Community Credit UnionCredit union · 9 branches
- Serve Credit UnionCredit union · 2 branches
- Advantage Credit UnionCredit union · 1 branch