Mortgage Refinance Rates in Illinois
Compare mortgage refinance rates from credit unions in Illinois. Today's best tracked refi rate: 6.319% APR. Zero affiliate bias — rates ranked by true cost.
Quick answer: As of August 2026, tracked mortgage refinance rates from credit unions in Illinois start at 6.319% APR, with a median of 6.500% APR across the top 5 offers. The lowest rate currently comes from Central Credit Union Of Illinois. Rates below are ranked by true cost with no affiliate bias.
Illinois mortgage refinance rates from credit unions start at 6.319% APR (median 6.500% APR across the top 5 offers), updated August 2026.
Source: RateAPI.dev
Top Illinois Credit Unions for Refinancing
Ranked by lowest APR. Based on a $400,000 refinance over 30 years.
| Credit Union | Rate | APR | Est. Payment | |
|---|---|---|---|---|
Central Credit Union Of Illinois 30-Year Fixed | 5.99% | 6.319% | $2,481/mo | Visit Site |
Alton Municipal Employees Credit Union 30-Year Fixed | 6.25% | 6.452% | $2,516/mo | Visit Site |
Quincy Postal Employees Credit Union 30-Year Fixed | 6.5% | 6.5% | $2,528/mo | Visit Site |
R.i.a. Credit Union 30-Year Fixed | 6.5% | 6.5% | $2,528/mo | Visit Site |
University Of Illinois Community Credit Union 30-Year Fixed | 6.5% | 6.5% | $2,528/mo | Visit Site |
When Refinancing Makes Sense in Illinois
Refinancing replaces your current mortgage with a new one — ideally at a lower rate or shorter term. The key question is whether monthly savings recoup closing costs before you move.
Check Your Break-Even
Divide closing costs by monthly savings. Under ~24 months is generally worthwhile. Use the break-even calculator.
Compare Credit Unions
Credit unions in Illinois often undercut bank refi rates by 0.25–0.50%. Compare at least 3–5 lenders.
Mind Your LTV and Credit
Lower loan-to-value and a score above 740 unlock the best refinance pricing. Cash-out refis price higher than rate-and-term.
Weigh Term Changes
Refinancing into a 15-year term raises the payment but cuts total interest. A shorter term often carries a lower rate.
Frequently Asked Questions
Common questions about refinancing in Illinois
As of August 2026, tracked mortgage refinance rates from credit unions in Illinois start at 6.319% APR, with a median of 6.500% APR across the top offers. Rates vary by credit score, loan-to-value, and whether you take cash out.
Refinancing makes sense when the new rate is low enough that your monthly savings recoup closing costs before you sell or move. A common rule of thumb is a break-even under 24 months. Use the refinance break-even calculator to check your specific numbers, then compare credit union offers here.
Credit unions in Illinois frequently beat bank refinance rates because they are member-owned non-profits that return savings through lower rates and fees. Comparing several lenders — including local credit unions — is the single biggest lever on your refinance cost.
RateAPI collects credit union rates for Illinois daily by scraping lender websites directly. The offers on this page reflect the most recent collection, last refreshed in August 2026.
Yes. RateAPI provides daily-updated Illinois mortgage and refinance rates through a REST API and MCP server, so fintech apps, comparison sites, and AI agents can query credit union rates programmatically.
Refinance Rates by State
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