Great Lakes Credit Union (Illinois) CD & Share Certificate Rates — October 2026
As of October 22, 2026, Great Lakes Credit Union (Illinois)'s highest tracked CD (share certificate) rate is 4.25% APY on a 100-day promotional CD ($1,000 minimum). That is 3.7 times the FDIC national average for 3-month CDs (1.14%). Standard CD rates range from 0.35% to 1.75% APY.
Tracking began .
Great Lakes Credit Union (Illinois) CD & share certificate rates
Membership required. Share certificates, including 100-day and 7-month promotions ($1,000 minimum), Save to Win ($25), Jumbo ($100,000) and Super Jumbo ($250,000) certificates. Early withdrawal penalties may apply.
APY = annual percentage yield. "vs. Treasury" compares each APY with the Treasury yield for the same term on 2026-10-21 (converted to APY). Treasury interest is exempt from state income tax; see the T-bill vs. CD calculator.
Watch the renewal rate
The best promotional rate here is 4.25% APY (100 days). The standard rate for a similar term is 0.35% APY (3 months). If the CD renews at the standard rate when it matures, $10,000 would earn about $390 less per year. Check the account terms and set a reminder before maturity.
Calculate the cost of auto-renewal · Set a maturity reminder
What are Great Lakes Credit Union (Illinois)'s best CD rates by term?
Great Lakes Credit Union (Illinois)'s best rate is 4.25% APY on 100 days, verified October 22, 2026.
- 3 mo0.35%
- 100 days4.25%
- 6 mo0.60%
- 7 mo3.85%
- 12 mo1.35%
- 24 mo1.60%
- 36 mo1.60%
- 48 mo1.65%
- 60 mo1.75%
How much interest could a Great Lakes Credit Union (Illinois) CD earn?
Estimated interest at maturity for the displayed institution quotes, before tax or early withdrawal penalties. Each estimate assumes the quoted APY applies to that balance and interest stays deposited. Estimates use known deposit tiers. Upper balance limits and membership, relationship or new-money requirements must be confirmed with the institution; these are conditional estimates, not personalized offers.
$114.68 interest · $10,114.68 at maturity on $10,000.00.
4.25% APY · 100 days · PROMO 100 Day Share Certificate · Promotional · verified October 22, 2026.
Before tax; interest remains deposited. Confirm all product conditions. Estimate one-year purchasing power.
| Term | $5,000 | $10,000 | $25,000 | $50,000 |
|---|---|---|---|---|
| 3 months | $4.360.35% APY · 3 mo Share Certificate · Standard | $8.710.35% APY · 3 mo Share Certificate · Standard | $21.790.35% APY · 3 mo Share Certificate · Standard | $43.570.35% APY · 3 mo Share Certificate · Standard |
| 100 days | $57.344.25% APY · PROMO 100 Day Share Certificate · Promotional | $114.684.25% APY · PROMO 100 Day Share Certificate · Promotional | $286.714.25% APY · PROMO 100 Day Share Certificate · Promotional | $573.424.25% APY · PROMO 100 Day Share Certificate · Promotional |
| 6 months | $15.020.60% APY · 6 mo Share Certificate · Standard | $30.040.60% APY · 6 mo Share Certificate · Standard | $75.090.60% APY · 6 mo Share Certificate · Standard | $150.190.60% APY · 6 mo Share Certificate · Standard |
| 7 months | $111.453.85% APY · PROMO 7 mo Share Certificate · Promotional | $222.903.85% APY · PROMO 7 mo Share Certificate · Promotional | $557.263.85% APY · PROMO 7 mo Share Certificate · Promotional | $1,114.513.85% APY · PROMO 7 mo Share Certificate · Promotional |
| 12 months | $42.500.85% APY · Share Certificate 1 yr (Incl. IRA) · Standard | $85.000.85% APY · Share Certificate 1 yr (Incl. IRA) · Standard | $212.500.85% APY · Share Certificate 1 yr (Incl. IRA) · Standard | $425.000.85% APY · Share Certificate 1 yr (Incl. IRA) · Standard |
| 24 months | $90.400.90% APY · Share Certificate 2 yr (Incl. IRA) · Standard | $180.810.90% APY · Share Certificate 2 yr (Incl. IRA) · Standard | $452.020.90% APY · Share Certificate 2 yr (Incl. IRA) · Standard | $904.050.90% APY · Share Certificate 2 yr (Incl. IRA) · Standard |
| 36 months | $166.821.10% APY · Share Certificate 3 yr (Incl. IRA) · Standard | $333.641.10% APY · Share Certificate 3 yr (Incl. IRA) · Standard | $834.111.10% APY · Share Certificate 3 yr (Incl. IRA) · Standard | $1,668.221.10% APY · Share Certificate 3 yr (Incl. IRA) · Standard |
| 48 months | $234.001.15% APY · Share Certificate 4 yr (Incl. IRA) · Standard | $468.001.15% APY · Share Certificate 4 yr (Incl. IRA) · Standard | $1,169.991.15% APY · Share Certificate 4 yr (Incl. IRA) · Standard | $2,339.981.15% APY · Share Certificate 4 yr (Incl. IRA) · Standard |
| 60 months | $320.411.25% APY · Share Certificate 5 yr (Incl. IRA) · Standard | $640.821.25% APY · Share Certificate 5 yr (Incl. IRA) · Standard | $1,602.051.25% APY · Share Certificate 5 yr (Incl. IRA) · Standard | $3,204.111.25% APY · Share Certificate 5 yr (Incl. IRA) · Standard |
How Great Lakes Credit Union (Illinois) compares
Compare the displayed terms, minimums and quote locations. Membership, relationship and new-money conditions may apply. Institution quotes below use the exact 100-day term. Regional peers quote a shared operating state; nationwide best is limited to our tracked sample.
| Institution / benchmark | Term | Minimum | Quote coverage | APY | Verified / source date |
|---|---|---|---|---|---|
| Great Lakes Credit Union (Illinois) (this institution) (highest tracked APY for this term)PROMO 100 Day Share Certificate · Promotional | 100 days | $1,000 | Coverage: IL | 4.25% | October 22, 2026 |
| Treasury (APY-equivalent) | 100 days (term-matched estimate) | Depends on purchase method | Federal; interest exempt from state income tax | 4.32% | 2026-10-21 |
Rate changes
See changes across all tracked institutions
No changes since we started tracking Great Lakes Credit Union (Illinois) on October 22, 2026.
About Great Lakes Credit Union (Illinois)
- Legal name
- Great Lakes Credit Union
- Regulator ID
- NCUA 60238
- Headquarters
- Bannockburn, IL
- Available in
- IL
- Total assets
- $1.4 billion
- Also known as
- Website
- www.glcu.org
Source: rates read from https://www.glcu.org/invest/certificates/share-certificates/. See the page text we read.
Frequently asked questions
What is the highest CD rate at Great Lakes Credit Union (Illinois)?
Among the rates we track, 4.25% APY on a 100-day promotional CD, as of October 22, 2026.
What is the minimum deposit for a Great Lakes Credit Union (Illinois) CD?
The lowest minimum we found is $25; jumbo and higher balance tiers start at up to $250,000.
How does Great Lakes Credit Union (Illinois)'s best CD rate compare with Treasury yields?
4.25% APY is −0.07% versus the 100-day Treasury yield of 4.32% (APY-equivalent) on 2026-10-21. Treasury interest is also exempt from state income tax.
Is 4.25% a good CD rate?
It is 3.7 times the FDIC national average for a similar term (1.14% as of 2026-10-19), which is a deposit-weighted average across all U.S. banks and credit unions. Online banks and promotional CDs often pay several times the national average.
Are Great Lakes Credit Union (Illinois) CDs insured?
Great Lakes Credit Union (Illinois) is a federally insured credit union (NCUA 60238). Share certificates are insured by the NCUA up to $250,000 per member, per ownership category.
What is a share certificate at Great Lakes Credit Union (Illinois)?
A share certificate is the credit union equivalent of a bank CD: a term deposit that pays a stated yield when its conditions are met. Membership requirements, minimum deposits and early withdrawal terms depend on the credit union and product.
How often is this page updated?
We check Great Lakes Credit Union (Illinois)'s rate page every day. The rates above were last verified on October 22, 2026.
More credit union certificate rates
Rates are copied from Great Lakes Credit Union (Illinois)'s website and may change at any time. Confirm terms, minimums and eligibility with Great Lakes Credit Union (Illinois) before opening an account. This page is not financial advice.