Mortgage by CountyWhat home buyers actually paid, county by county

Independent analysis of official mortgage recordsHMDA 2025 · 7,155,718 applications

Lender in Illinois · HMDA 2025

Old Second National Bank mortgages in Illinois

Old Second National Bank's 2025 home-purchase and refinance lending in Illinois, compared with all lenders in the state.

Old Second National Bank originated 315 owner-occupied single-family loans in Illinois from 355 completed applications.

Its median conventional purchase loan costs were $5,830 versus $6,090 for all Illinois lenders, at a median 30-year fixed rate of 6.75% (Illinois: 6.625%).

Loans in IL
315
of 355 applications
Denial rate
5.3%
Purchase · IL 9.2%
Rate spread
+0.17 pts
Conv. · IL +0.27 pts
Loan amount
$275,000
Purchase · IL $275,000

By loan purpose

PurposeApplicationsLoansDenial rate30-yr rate*Rate spread*Loan costs*Median loan
Home purchase2272055.3%6.750%+0.17 pts$5,830$275,000
Refinance68617.3%6.375%−0.06 pts$2,610$325,000
Cash-out refinance604915.0%7.000%+0.30 pts$2,510$255,000

*Conventional loans only; medians with at least 20 loans.

Illinois counties where Old Second National Bank ranks in the top 25

CountyRankLoansMarket share
DeKalb County13261.8%
Kane County22851.2%
Kendall County22291.1%
LaSalle County23120.9%

Source: FFIEC/CFPB HMDA 2025 public LAR. Statistical profile, not a review or offer. Methodology