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ILLINOIS / MORTGAGE SHOPPING

Compare Illinois mortgage rates—and the costs behind them.

There is no single mortgage rate for every Illinois borrower. Match the loan type, amount, points and lock period before comparing written offers. Then check your county’s loan limit, property expenses and assistance terms so a smaller estimate does not hide a larger bill.

Published by Shop Lender Rates · Guide updated
Platform and editorial contact: Enrique Pelayo Jr., NMLS #131435. This date describes this guide, not a live rate check.

Educational coverage does not guarantee an available originator. You choose whether to share contact details.

What should a Illinois mortgage shopper check first?

Start with the property’s county or equivalent area, the number of units, and the lender’s authority to originate your loan.

2026 / ONE UNIT

$832,750

The same one-unit conforming limit appears throughout the state’s FHFA records. This cap applies to the loan, not the sale price.

LOCAL COVERAGE

102 areas

Adams County and the other areas in the table share this one-unit limit. Taxes, insurance and assistance eligibility can still differ.

OFFICIAL HOUSING RESOURCE

Illinois Housing Development Authority

Use the agency’s current information to check programs and participating lenders.

Visit the housing agency ↗

Sources: FHFA’s 2026 county table and NCSHA’s state agency directory. Checked September 20, 2026.

2026 Illinois conforming loan limits by county

Use the property’s exact jurisdiction and unit count. Being below the limit does not establish approval, a down-payment requirement or a rate; ask whether a quote uses standard conforming, high-balance or jumbo pricing.

102 of 102 areas shown. Source: FHFA 2026 county table. Search changes this table only.

2026 Illinois · 1-unit conforming loan limits
County or equivalent areaMaximum loan amount
Adams County$832,750
Alexander County$832,750
Bond County$832,750
Boone County$832,750
Brown County$832,750
Bureau County$832,750
Calhoun County$832,750
Carroll County$832,750
Cass County$832,750
Champaign County$832,750
Christian County$832,750
Clark County$832,750
Clay County$832,750
Clinton County$832,750
Coles County$832,750
Cook County$832,750
Crawford County$832,750
Cumberland County$832,750
Dekalb County$832,750
De Witt County$832,750
Douglas County$832,750
Dupage County$832,750
Edgar County$832,750
Edwards County$832,750
Effingham County$832,750
Fayette County$832,750
Ford County$832,750
Franklin County$832,750
Fulton County$832,750
Gallatin County$832,750
Greene County$832,750
Grundy County$832,750
Hamilton County$832,750
Hancock County$832,750
Hardin County$832,750
Henderson County$832,750
Henry County$832,750
Iroquois County$832,750
Jackson County$832,750
Jasper County$832,750
Jefferson County$832,750
Jersey County$832,750
Jo Daviess County$832,750
Johnson County$832,750
Kane County$832,750
Kankakee County$832,750
Kendall County$832,750
Knox County$832,750
Lake County$832,750
Lasalle County$832,750
Lawrence County$832,750
Lee County$832,750
Livingston County$832,750
Logan County$832,750
Mcdonough County$832,750
Mchenry County$832,750
Mclean County$832,750
Macon County$832,750
Macoupin County$832,750
Madison County$832,750
Marion County$832,750
Marshall County$832,750
Mason County$832,750
Massac County$832,750
Menard County$832,750
Mercer County$832,750
Monroe County$832,750
Montgomery County$832,750
Morgan County$832,750
Moultrie County$832,750
Ogle County$832,750
Peoria County$832,750
Perry County$832,750
Piatt County$832,750
Pike County$832,750
Pope County$832,750
Pulaski County$832,750
Putnam County$832,750
Randolph County$832,750
Richland County$832,750
Rock Island County$832,750
St. Clair County$832,750
Saline County$832,750
Sangamon County$832,750
Schuyler County$832,750
Scott County$832,750
Shelby County$832,750
Stark County$832,750
Stephenson County$832,750
Tazewell County$832,750
Union County$832,750
Vermilion County$832,750
Wabash County$832,750
Warren County$832,750
Washington County$832,750
Wayne County$832,750
White County$832,750
Whiteside County$832,750
Will County$832,750
Williamson County$832,750
Winnebago County$832,750
Woodford County$832,750

County-equivalent names follow FHFA’s table, including parishes, boroughs, planning regions and independent cities. Confirm the property’s jurisdiction with your lender. FHA limits are separate.

Original FHFA table, all counties (PDF) · Current FHFA releases · HUD’s separate FHA limit lookup. This is a dated 2026 reference, not a live underwriting feed.

Where should I look for Illinois down-payment help?

Illinois Housing Development Authority is the state housing-agency starting point listed by NCSHA. A directory listing does not mean every program is open or every applicant qualifies.

Ask for two complete options

Request a written comparison with and without assistance. Include the first mortgage’s rate and fees, the assistance balance, any monthly payment, and the amount due if you sell or refinance. Cash saved today and total financing cost are different questions.

  • Is this a grant, forgivable loan or repayable second mortgage?
  • Are there income, purchase-price, location or first-time-buyer rules?
  • Which lenders are approved, and is homebuyer education required?
  • What happens when you move, sell, refinance or repay early?

How can I compare Illinois quotes without misleading totals?

Keep property costs and timing assumptions consistent, then compare lender-controlled pricing and the cost over your expected time in the loan.

Questions to ask before choosing a quote
CheckAsk forWhy it matters
Rate, points and creditsThe same loan amount, structure and lock periodA rate bought with points is not the same offer as a zero-point quote.
Property taxesThe actual jurisdiction and an estimate appropriate to the purchaseAsk the local tax authority whether the seller’s exemptions or assessment will apply to you.
Insurance and association costsA property-specific insurance quote, deductibles, HOA dues and known assessmentsAsk about required flood or other coverage; generic monthly placeholders can understate the budget.
Title, settlement and government chargesAn itemized provider estimate and who pays each chargeConfirm local charges and contract allocations instead of assuming one statewide closing-cost percentage.
Prepaids and escrowThe same closing date, insurance premium and tax assumptionsLower reserves or fewer prepaid days can reduce cash to close without improving the loan price.

See the CFPB Loan Estimate explainer. Use the SLR comparison worksheet to keep estimates organized.

How do I verify a Illinois loan officer?

Match the person’s NMLS identifier, company and current licensing or registration record in NMLS Consumer Access. Confirm authority for your property state; bank originators and state-licensed originators can have different registration structures. If the record is unclear, check with the listed regulator before sending sensitive documents.

SLR’s educational pages do not confer licensing or represent every lender. Check participating originators and decide separately whom to contact.

Where can I see current mortgage-rate context?

The market dashboard labels national benchmarks by source and observation date. Those figures are not measured Illinois rates or available loan offers. Reprice your own scenario with the lender when your property, loan details or lock timing changes.

Find the right starting point in Illinois

Working through credit challenges?

Ask which loan programs fit your complete file and whether the lender has requirements beyond the program minimum. State assistance eligibility and mortgage approval are separate reviews.

Prepare a credit and mortgage plan →

Considering a refinance? Compare costs and your payoff timeline. Exploring home equity? Check combined payments and repayment terms before borrowing.

Illinois mortgage questions

What is the 2026 conforming loan limit in Illinois?

The 2026 one-unit limit is $832,750 across the 102 county-equivalent areas in FHFA’s Illinois table. Two- to four-unit limits differ. This is a loan-amount limit, not a home-price cap or an approval.

Where can I find Illinois homebuyer assistance information?

Start with Illinois Housing Development Authority, listed in NCSHA’s state agency directory. Ask about currently open programs, approved lenders, income and purchase-price limits, education, and whether assistance must be repaid. Agency listing does not establish your eligibility or program funding.

Are the rates on this page actual Illinois offers?

No. The market link provides dated national benchmarks. An actual Illinois quote requires your loan and property details, current lender pricing and a defined lock period. Educational coverage of this state does not guarantee an available SLR originator.