The best savings rates for Johnston, Iowa and the surrounding area include Grinnell State BankGrinnell State Bank5601 Merle Hay Rd, Johnston, IA 50131A+5.0 ★Texas Ratio: 0.00% Simply Savings at 2.02% APY, Charter Bank IACharter Bank IA5526 Nw 86th St, Johnston, IA 50131A+5.0 ★Texas Ratio: 0.00% Charter Savings at 0.50% APY, Community State Bank (IA)Community State Bank (IA)6175 Merle Hay Rd, Johnston, IA 50131A+5.0 ★Texas Ratio: 1.50% A smart and easy way to gradually build your savings growth and peace of mind at 0.15% APY, Community Choice Credit Union Johnston, IACommunity Choice Credit Union Johnston, IA8404 nw 62nd ave, Johnston, IA 50131A+5.0 ★Texas Ratio: 3.15% The Money Mammals® Kids ClubTM at 0.15% APY, and Bank IowaBank Iowa5580 Merle Hay Rd, Johnston, IA 50131A+5.0 ★Texas Ratio: 5.49% Young Savers Savings at 0.11% APY. Savings rates as of March 29, 2026 according to verified data from MonitorBankRates.
To see how these savings rates in Johnston, Iowa, and the surrounding area, compare, use our comprehensive tables below for side-by-side comparisons to find the best savings rates available. Rates in Johnston, Iowa (IA) are continually updated — we recommend checking back frequently.
Savings rates reflect recent market quotes and representative offers available to depositors in Johnston, Iowa and the surrounding area. Last Updated and Verified: March 29, 2026
Qualifying balance up to $500.00
$200,000.00 +; Minimum to open $100
$100,000.00 to $199,999.99; Minimum to open $100
Qualifying balance up to $100,000.00
$50,000.00 to $99,999.99; Minimum to open $100
Qualifying balance up to $200,000.00
$5,000.00 to $49,999.99; Minimum to open $100
Qualifying balance up to $1,000,000.00
$0.00 to $499.99; Minimum to open $100
Money Market Savings Minimum to open $100; Minimum for APY $25,000 AB7
$5.00 minimum deposit required to open account.
$5.00 minimum deposit required to open account. $5,000.01 minimum average daily balance required to earn interest.
No minimum deposit required to open the account. $500.00 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $5,000.01 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $5,000.01 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $500.01 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $500.01 minimum average daily balance required to earn interest.
No minimum deposit required to open the account. $500.00 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $5,000.01 minimum average daily balance required to earn interest.
$5.00 minimum deposit required to open account. $5,000.01 minimum average daily balance required to earn interest.
Qualifying balance up to $5,000.00
Qualifying balance up to $500.00
Qualifying balance up to $5,000.00
No fees; No hassle; No worries
Contact your local banker for more details!
Max Balance $1,000
Qualifying balance up to $1,000.00
Minimum of $2,500 to earn dividends
Qualifications Required: eStatements enrollment; Online Only
Compare local Johnston, IA 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.
Iowa high-yield savings rates fell 0.240 points this week to 1.097% APY, down from 1.337% last week.
Iowa standard savings rates rose 0.382 points this week to 0.620% APY, up from 0.238% last week.
Direct-Sourced & Verified Savings Rate Data: We aggregate savings account rates for Johnston, Iowa 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 Johnston, Iowa. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to large national institutions available to savers in IA.
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.