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 1–8 results in Union County, SD · Few institutions in Union County, SD: choose a wider area in the filters
- 2.57%APY$257 a year on $10,000
Requirements
Product: Must be established, accessed, and maintained exclusively online.
Offer: $3.00 monthly service charge waived if daily balance remains at $100.00 or above. $2.00 service charge per withdrawal over 6 per calendar month. Online opening only.
2.55% interest rate · $3 monthly fee
Rate checked
More details - First Dakota National BankFirstChoice Money MarketFirstChoice Money Market · $10,000 min · 1.00%–2.53% by balance
Bank · 1 branch
1.00%APY$100 a year on $10,000Requirements
Product: Interest will not accrue if your balance falls below $10,000.00. Interest is compounded and credited monthly. A monthly imaged statement is issued. Rates listed above are for accounts that can be opened online only. Contact a banker for a full list of rates and products offered. There is a $2.00 service charge for each withdrawal over 6 per calendar month.
1.00% interest rate
Rate by balance
Rate by balance for FirstChoice Money Market Balance APY $10,000 – $25,000Your amount 1.00% $25,000 – $100,000 1.26% $100,000 – $150,000 1.92% $150,000 – $250,000 2.02% $250,000 – $500,000 2.12% $500,000 and up 2.53% Rate checked
More details - Siouxland Federal Credit UnionMoney Market Account (MMA)Money Market Account (MMA) · $1,000 min · 0.20%–1.25% by balance
Credit union · 1 branch
0.75%APY$75 a year on $10,000Requirements
Offer: Variable rate account.
0.20% interest rate · Effective Oct 1, 2026
Rate by balance
Rate by balance for Money Market Account (MMA) Balance APY Up to $999 0.20% $1,000 – $24,999Your amount 0.75% $25,000 and up 1.25% Rate checked
More details - 0.65%APY$65 a year on $10,000
Requirements
Product: No minimum balance is required for customers under 18 years old.
Offer: $3.00 monthly service charge waived if daily balance remains at $100.00 or above, or if customer is under 18 years old. $2.00 service charge per withdrawal over 6 per calendar month.
0.65% interest rate · $3 monthly fee
Rate checked
More details - 0.20%APY$20 a year on $10,000
Requirements
Product: Basic savings plan entitling member to apply for all other services. Paid dividends. Dividends paid 9/30/2026. These are variable rate accounts. Rates subject to change after the account is opened.
Offer: *The 'Minimum Deposit' is required to open the account. **The 'Minimum Balance' is required to earn the disclosed APY. Dividends paid 9/30/2026.
0.20% interest rate
Rate checked
More details - Security National Bank of South DakotaSerious on Savings (SOS) AccountSavings · $1 min · 0.10%–0.15% by balance
Bank · 1 branch
0.15%APY$15 a year on $10,000Requirements
Product: Receive a direct deposit or monthly transfer from another SNB account of $25.00 or more into an SOS account to avoid the $3.99 monthly maintenance fee. One withdrawal per statement cycle allowed ($5.99 for each additional withdrawal; ATM withdrawals charged $5.99).
Offer: Tier applies to balances under $500. Monthly maintenance fee of $3.99 applies each month the minimum monthly transfer/direct deposit of $25 is not made.
0.10% interest rate · $3.99 monthly fee
Rate by balance
Rate by balance for Serious on Savings (SOS) Account Balance APY Up to $500 0.10% $500 and upYour amount 0.15% Rate checked
More details - Security National Bank of South DakotaMoney Market GoldMoney Market Gold · $2,500 min · 0.10%–0.20% by balance
Bank · 1 branch
0.15%APY$15 a year on $10,000Requirements
Product: Minimum opening deposit of $2,500. Monthly maintenance fee of $7.00 applies if average daily balance falls below $2,500 during the month. $1.00 fee for each transaction exceeding 6 per month (non-SNB ATM transactions excluded). $1.50 non-SNB ATM fee waived if maintaining an average daily balance of $15,000 or more.
0.10% interest rate · $7 monthly fee
Rate by balance
Rate by balance for Money Market Gold Balance APY Up to $2,499 0.10% $2,500 – $39,999Your amount 0.15% $40,000 – $99,999 0.17% $100,000 and up 0.20% Rate checked
More details - Security National Bank of South DakotaRegular Statement Savings AccountSavings · $50 min
Bank · 1 branch
0.10%APY$10 a year on $10,000Requirements
Product: Up to two withdrawals allowed per month; three or more are $1.00 each (Non-SNB ATM transactions not counted in limit). $2.00 monthly maintenance fee charged if balance falls below $200 on any day of the month (minors exempt).
Offer: No monthly maintenance fee with a minimum daily balance of $200; otherwise $2.00/month (waived for minors).
0.10% interest rate · $2 monthly fee
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 Union County, SD
8 accounts at 3 banks and credit unions · checked Oct 22
- Typical
- 0.43%
- Top 10% from
- 1.47%
- Banks, typical
- 0.40%
- Credit unions, typical
- 0.48%
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Sioux City, IA-NE-SD metro
Top Carrot institutions
Ranked across their CDs, savings, auto loans and credit cards. How scores work
- Telco Triad Community Credit UnionCredit union · 4 branches
- Siouxland Federal Credit UnionCredit union · 7 branches