Mercer Island, Washington (WA) Savings Rates - March 2026
Brian McKay
Brian McKay
Founder & Data Architect- Automated Online Rate Data Aggregation
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The best savings rates for Mercer Island, Washington and the surrounding area include Banner BankBanner Bank2918 78th Ave Se, Mercer Island, WA 98040A+5.0 ★Texas Ratio: 1.69% High Yield Relationship Savings at 2.63% APY, Wells FargoWells Fargo3001 78th Ave Se, Mercer Island, WA 98040A5.0 ★Texas Ratio: 7.44% Platinum Savings at 0.05% APY, Responders Emergency Services Credit UnionResponders Emergency Services Credit Union924 W Sinto Ave, Spokane, WA 99201 2531A+5.0 ★Texas Ratio: 0.00% Savings at 12.00% APY, Whatcom Educational Credit UnionWhatcom Educational Credit Union600 E Holly St, Bellingham, WA 98225A+5.0 ★Texas Ratio: 4.98% First Step (Youth) Savings at 7.00% APY, and Alaska Air Group Federal Credit UnionAlaska Air Group Federal Credit Union2800 S 192nd St Ste 106, SEATAC, WA 98188 5164A+5.0 ★Texas Ratio: 0.33% Youth Savings at 6.14% APY. Savings rates as of March 27, 2026 according to verified data from MonitorBankRates.
To see how these savings rates in Mercer Island, Washington, and the surrounding area, compare, use our comprehensive tables below for side-by-side comparisons to find the best savings rates available. Rates in Mercer Island, Washington (WA) are continually updated — we recommend checking back frequently.
Savings rates reflect recent market quotes and representative offers available to depositors in Mercer Island, Washington and the surrounding area. Last Updated and Verified: March 27, 2026
Compare the Best Savings Rates in Mercer Island, Washington & Surrounding Communities
Minimum opening balance of $25,000 must be new money to Banner Bank. A Banner Bank checking account is required to open a High Yield Relationship Savings account.
If relationship balance is below $25,000, Annual Percentage Yield (APY) is 0.25%.
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
$25 minimum opening deposit
Maximum Balance: $1,200
Qualifying balance up to $500
Qualifying balance up to $500.00
Qualifying balance up to $2500.00
Qualifying balance up to $1,000.00
One Per Member (Primary RS Savings only) for 5%
Qualifying balance up to $1,000.00
Qualifying balance up to $500.00
Qualifying balance up to $500.00; Learn More
Full Balance
Qualifying balance up to $1,000.00
Qualifying balance up to $500.00
Qualifying balance up to $5,000.00
Qualifying balance up to $5,000.00
Qualifying balance up to $5,000.00
Qualifying balance up to $50,000
Qualifying balance up to $25,000.00
Qualifying balance up to $25,000.00
Qualifying balance up to $499.99
Qualifications Required: Six qualifying transactions per month in an OnPoint checking account; Qualifying balance up to $100,000.00
deposit $25,000 in new money** within 30 days
$25,000.00 New Money within 30 days**
$100,000 and greater
RELATIONSHIP
Qualifications Required: Sign up for eStatements; Link Bonus Savings to a Solarity checking account; Make 20 or more debit card purchases each month; Qualifying balance up to $10,000
Minimum Balance 4,5,6,9,10
Complimentary Kids Savings stackable money bank and passbook at new account opening
Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.
Mercer Island, WA Savings Rate Trends
Compare local Mercer Island, WA savings rate quotes against the statewide average
Weekly savings rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
Washington high-yield savings rates fell 1.033 points this week to 0.766% APY, down from 1.799% last week.
Washington standard savings rates rose 0.096 points this week to 0.307% APY, up from 0.211% last week.
Methodology & Data Sources
Direct-Sourced & Verified Savings Rate Data: We aggregate savings account rates for Mercer Island, Washington directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every savings rate displayed on MonitorBankRates.com is highly accurate and trustworthy.
Local, Regional, and National Coverage: Our systems constantly monitor the market to provide a complete picture of available yields in Mercer Island, Washington. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to large national institutions available to savers in WA.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update savings rates daily. Because savings account yields can fluctuate rapidly, every product listed features its own specific “last updated” date, giving you complete transparency.
Frequently Asked Questions about Savings Accounts in Mercer Island, Washington
What is a High-Yield Savings Account (HYSA)?
Are savings accounts in Mercer Island, Washington safe?
How often do savings rates change in Mercer Island, Washington?
Do I need a minimum deposit to open a savings account?
What is the difference between a Savings Account and a Money Market Account?
Are online banks better than local banks in Mercer Island, Washington?
How do I open a savings account in Mercer Island, Washington?
Best Savings Rates in Mercer Island, Washington
- Banner Bank
High Yield Relationship Savings — 2.63% APY - Wells Fargo
Platinum Savings — 0.05% APY - Responders Emergency Services Credit Union
Savings — 12.00% APY - Whatcom Educational Credit Union
First Step (Youth) Savings — 7.00% APY - Alaska Air Group Federal Credit Union
Youth Savings — 6.14% APY
