Current O Fallon, Illinois and the surrounding area money market rates include De Witt Savings BankDe Witt Savings Bank302 W Main St, Clinton, IL 61727A+5.0 ★Texas Ratio: 3.19% N-Vest Money Market Tier 7 at 4.07% APY, FCB BanksFCB Banks1501 W Highway 50, O Fallon, IL 62269A+5.0 ★Texas Ratio: 3.72% Hometown Money Market (with Direct Deposit) at 4.05% APY, United Trust BankUnited Trust Bank12330 S Harlem Ave, Palos Heights, IL 60463A+5.0 ★Texas Ratio: 2.60% Premium Money Market Special at 4.00% APY, United Equity Credit UnionUnited Equity Credit Union687 Lincoln St, Galesburg, IL 61401A+5.0 ★Texas Ratio: 3.09% Money Market Account 12 Months at 3.90% APY, and Waterman BankWaterman Bank248 W Lincoln Hwy, Waterman, IL 60556A+5.0 ★Texas Ratio: 3.95% Money Market at 3.82% APY.
To see how these money market rates in O Fallon, Illinois and the surrounding area compare, use our comprehensive tables below for side-by-side comparisons so you can find the best yields available. Rates in O Fallon, Illinois (IL) are continually updated we recommend checking back frequently.
Rates reflect recent market quotes and representative offers available to depositors in O Fallon, Illinois and surrounding area. Last Updated and Verified: March 20, 2026
Compare local O Fallon, IL MMA rate quotes against the statewide average
Weekly money market rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
Illinois high-yield MMA rates rose 0.731 points this week to 1.415% APY, up from 0.683% last week.
Illinois standard MMA rates rose 0.361 points this week to 1.130% APY, up from 0.768% last week.
Qualifying balance up to $2,499.99
Qualifying balance up to $2,499.99
New money only
Minimum deposit to open: $2,500; If balance falls below $2,500, a $25 maintenance fee will be assessed. Maximum account balance is $250,000. If balance exceeds $250,000, Annual Percentage Yield (APY) on entire balance will decrease to 3.50%. Account must be funded with money not currently on deposit with Republic Bank of Chicago within the last 180 days (i.e., new money which has not been held in a Republic Bank deposit account of any kind in the last 6 months).; Other terms and conditions may apply1.
New money only
With Private Client Account****
With Huntington Platinum Perks Checking***
With Huntington Perks Checking**
Minimum deposit to open: $2,500; If balance falls below $2,500, a $25 maintenance fee will be assessed. Maximum account balance is $250,000. If balance exceeds $250,000, Annual Percentage Yield (APY) on entire balance will decrease to 3.50%. Account must be funded with money not currently on deposit with Republic Bank of Chicago within the last 180 days (i.e., new money which has not been held in a Republic Bank deposit account of any kind in the last 6 months).; Other terms and conditions may apply1.
$15,000+
Non-Relationship Rate
$25,000 minimum to open account. $25,000 minimum to earn 3.20% APY.
Minimum of $25,000 not currently deposited at Huntington.
Qualifying balance up to $10,000.00
APY for 6 months
Direct-Sourced & Verified Money Market Rate Data: We aggregate money market account rates for O Fallon, Illinois directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every money market 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 O Fallon, Illinois. We feature a comprehensive mix of institutions from neighborhood credit unions and mid-sized regional banks to large national institutions available to savers in IL.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update money market rates daily. Because MMA yields can fluctuate rapidly based on market conditions, every product listed features its own specific “last updated” date, giving you complete transparency.