NCUA Insured
Member-Owned
1 charter
Established in 1939
Contact this credit union directly for detailed information about membership eligibility and current rates.
Membership Eligibility
Anyone who lives, works, or worships in or around Alton, IL may be eligible to join. Community credit unions are open to the general public within their service area.
Check eligibility on their website →NCUA Insured — deposits protected up to $250,000
Member-Owned — not-for-profit cooperative
1 charter
Established in 1939
Low-Income Designated
Contact this credit union directly for detailed information about membership eligibility, current rates, and services.
Services Offered
This credit union is located in Alton and serves members in the IL area. Currently serving 5,588 members.
Contact the credit union to confirm membership eligibility requirements for your area.
Credit union membership is based on a common bond. Contact this credit union directly to confirm you qualify for membership.
Key indicators from NCUA regulatory filings. Tap any metric to learn what it means.
Source: NCUA Federally Insured Credit Unions list, Q4 2025.
Rates sourced from NCUA call report data (Q4 2025). Contact the credit union for current rates and terms.
New Auto Loan
5.50%Used Auto Loan
5.50%Personal Loan
12.90%Credit Card APR
9.90%Important: Rates are sourced from NCUA call report filings (Q4 2025) and reflect averages reported by the credit union — not guaranteed quotes. Contact the credit union directly for current rates and terms.
Your actual rate will vary based on your credit score, loan term, and financial profile. Personal loans and credit cards tend to see the most variation.
Lowest rates currently reported by credit unions in IL (NCUA Q4 2025).
Danville, IL
Chicago, IL
Chicago, IL
Bannockburn, IL
Rates from NCUA regulatory filings. Contact credit unions directly for current rates.
3.2
22 Google reviews
Reviews sourced from Google Maps. Ratings reflect member experiences at this credit union.
View on Google MapsNaKayah Ewing
2 months ago
Absolutely love Altonized. The whole team makes everything easy and efficient every visit. Highly recommend!
D JARRETT
5 months ago
Sue Ellen is a pleasure to deal with. I will recommend Altonized to all my family and friends!
Evan Phelps
8 months ago
Let's money in but doesn't let me reopen my account and take the money out. Can't get access to my last paycheck. 👎
Candis Newsome
5 years ago
When I first started off with Altonized years ago I really liked how they conducted business. Friendly and professional. Lately, especially during these hard times they are not willing to work with you at all. I’m a co-signer and I received a negative remark on my credit before the 1st responsible party did. My account with them is current (I’m never late) but in no way did the manager take that in consideration. I also tried to get financed back in May but she said she couldn’t work with me because of someone else’s credit when I wasn’t even including that person in my credit application. I proceeded to go elsewhere and was approved on my own. I just really think the manager works more on a personal note than fair business. I’m so glad I found another creditor and won’t need Altonized for anything in the future. Covid is here and some are having hard times. You guys should get some kind of program together to try and help instead of trying to tear them down more by being so quick to send negative reports to the credit bureaus.
Brandin Olsen
4 years ago
I have been with this bank 3 years and can honestly say that I wouldn't even recommend them to my worst enemy. Where shall I start? They Don't Accept Change Online Banking usually glitches out They Don't offer any Business Programs/Loans They Don't Have Online Check Deposits Half of the staff shouldn't even be allowed to count money sas they call me an hour after I left to"verify" the amount I gave them. Last but not least they offer no help when the water company takes my payment but doesn't give me credit. would give 0 stars if I could
Weekdays 9am–4pm typically have the shortest wait times for new member inquiries.
Your deposits are federally insured up to $250,000 per account category by the National Credit Union Administration (NCUA).
Phone
(800) 421-4759Website
Visit WebsiteMembers
5,588
Total Assets
$51.4M
Year Opened
1939
Net Worth
Well Capitalized
Designations
Official NCUA Data
All data sourced from the National Credit Union Administration (NCUA).
View NCUA Profile