Current Castleton, Illinois CD rates include Merchants Bank of IndianaMerchants Bank of Indiana101 W Main St, Joy, IL 61260A+5.0 ★Texas Ratio: 4.20% offering 12 Month Flex Index CD at 4.86% APY, Gas and Electric Credit UnionGas and Electric Credit Union2300 4TH AVE, ROCK ISLAND, IL 61201A+5.0 ★Texas Ratio: 4.44% offering 6 Month CD at 4.10% APY, ABD Federal Credit UnionABD Federal Credit Union892 BELVIDERE RD, BELVIDERE, IL 61008 9302A+5.0 ★Texas Ratio: 2.11% offering 1 Year Certificate at 4.06% APY, Policemens Federal Credit UnionPolicemens Federal Credit Union4100 W 76TH ST, CHICAGO, IL 60652 5600A+5.0 ★Texas Ratio: 0.46% offering 12 months (1 year) Certificate at 4.00% APY, and Vibrant Credit UnionVibrant Credit Union4400 16th St, Moline, IL 61265A-5.0 ★Texas Ratio: 15.61% offering 6-Month CD Special at 4.00% APY. CD rates as of March 25, 2026 according to verified data from MonitorBankRates.
To help you find the best CD rates in Castleton, Illinois, and the surrounding area,, use our comprehensive rate tables for side-by-side comparisons across all 8 CD terms from local and national banks and credit unions, to ensure you find the best CD rates available.
The Annual Percentage Yields (APYs) displayed reflect actual verified offers from top-rated institutions. Rates are subject to change at the institution's discretion without notice and may depend on your initial funding amount. A substantial penalty may be imposed for early withdrawal, which could reduce earnings on the account. CD Rates Last Updated and Verified: March 25, 2026
$1,000 minimum balance is required. 90 day early withdrawal penalty.
$500.00 Minimum Balance; Interest Paid at maturity; 3 Month Interest Penalty
Penalty may be imposed for early withdrawal. Fees may reduce earnings on account. Minimum deposit to open and earn interest: $1,000.
$2,500 Minimum Opening Deposit
$2,500 minimum opening deposit; Early withdrawal penalties may apply
LIMITED TO FUNDS NOT ALREADY ON DEPOSIT
$1,000 minimum balance is required. 90 day early withdrawal penalty.
No monthly fee
$3,000.00-$149,999.99
$100,000
$500.00 Minimum Balance; Interest Compounded Quarterly; 3 Month Interest Penalty
Quarterly compounding ; $10 minimum additions allowed
Early withdrawal penalty may apply. Annual payout of dividends required.
Minimum deposit $100,000 for Certificates of Deposit (CDs) and applies to new money deposits only. This CD is a fixed rate certificate for the full 12-month term. This offer is for a limited time only, so call or visit our website to open your CD today! Fees, withdrawals, and penalties could reduce the earnings on the account. Interest is paid monthly via ACH or added back at maturity. Call for rates and APY on additional minimum balances.
For "new money" only (Does not apply to funds already on deposit with MEFCU)
$100,000
$500.00 Minimum Balance; Interest Compounded Quarterly; 3 Month Interest Penalty
Minimum Balance Required to open account $500
$50,000 - $89,999
LIMITED TO FUNDS NOT ALREADY ON DEPOSIT
Save more when you move at least $500 from another financial institution.
Rate changes quarterly-Quarterly compounding-<br/>$100.00 minimum additions permitted-IRA fund also permitted
$500.00 Minimum Balance; Interest Compounded Quarterly; 6 Month Interest Penalty
Early withdrawal penalty may apply. Annual payout of dividends required.
Minimum balance of $1,000 is required. 180 day early withdrawal penalty.
$100,000
$500.00 Minimum Balance; Interest Compounded Quarterly; 6 Month Interest Penalty
Minimum Balance Required to open account $500
LIMITED TO FUNDS NOT ALREADY ON DEPOSIT
Minimum balance of $1,000 is required. 180 day early withdrawal penalty.
$100,000
$3,000.00-$149,999.99
$100,000
Minimum Balance Required to open account $500
Quarterly compounding, $10.00 min. additions
Minimum balance of $10,000 is required.
No monthly fee
Compare local Castleton, IL CD rate quotes against the statewide average
Weekly CD rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
Illinois 12-month CD rates fell 0.509 points this week to 2.129% APY, down from 2.638% last week.
Illinois 6-month CD rates fell 0.677 points this week to 1.772% APY, down from 2.450% last week.
Direct-Sourced & Verified CD Rate Data: We aggregate certificate of deposit (CD) rates for Castleton, Illinois directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. By pulling data straight from the institutions' own digital properties and manually verifying yields daily, every rate 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 Castleton, Illinois. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to high-yield CDs from large national institutions available to savers in IL.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update CD rates daily. Because yields can fluctuate rapidly, every CD product listed features its own specific “last updated” date for full transparency.