Mortgage Lender Index

Bank of Sun Prairie

Bank of Sun Prairie received 221 applications in 2025 and made 153 mortgages, in 18 counties across 1 state. The median rate its borrowers got was 6.500% on a median loan of $295,000. Of 191 decisions, 23 were denials — 12.0%, most often for debt-to-income ratio.

Legal Entity Identifier6354007NTMKKVRFIIP73
Applications received221
Mortgages made153
Denied23
Approved, not taken up15
Withdrawn or incomplete30
Loans bought from other lenders0
Median rate spread over the prime offer rate-0.072 points
FDIC-insured bankYes: Bank of Sun Prairie, 8 offices

By loan purpose

PurposeMortgages madeMedian rateMedian loanDenied
Home purchase99 6.500%$305,000 4.5%
Refinancing37 6.375%$305,000 21.8%
Cash-out refinancing12 6.063%$245,000 30.0%
Other purposes5 Under 10 loansUnder 10 loans 0.0%

Where Bank of Sun Prairie lends most

The 18 counties where it made the most mortgages in 2025. Each county page ranks every lender there.

CountyMortgages madeMedian rateDenied
Dane County, WI 916.500%15.3%
Columbia County, WI 156.375%5.9%
Jefferson County, WI 146.813%0.0%
Rock County, WI 8Under 10 loans21.4%
Milwaukee County, WI 4Under 10 loans0.0%
Waukesha County, WI 4Under 10 loans0.0%
Dodge County, WI 3Under 10 loans0.0%
Green County, WI 3Under 10 loans0.0%
Sauk County, WI 3Under 10 loans0.0%
Adams County, WI 1Under 10 loans0.0%
Door County, WI 1Under 10 loans0.0%
Iron County, WI 1Under 10 loans0.0%
Juneau County, WI 1Under 10 loans0.0%
Marquette County, WI 1Under 10 loans0.0%
Vilas County, WI 1Under 10 loans0.0%
Walworth County, WI 1Under 10 loans0.0%
Waushara County, WI 1Under 10 loans0.0%
Fond du Lac County, WI 0Under 10 loans50.0%

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When Bank of Sun Prairie’s figures are published for the next year, or restated.

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Counts, medians and denial shares are computed from the Home Mortgage Disclosure Act loan-level file for 2025, published by the Consumer Financial Protection Bureau through the FFIEC: every application a covered lender received, as the lender reported it. A median rate is what borrowers got, not what you will be offered — it depends on the loan, the property, your credit and the market on the day, and no figure here is a quote. A median over fewer than 10 loans is not shown: it is a number with no meaning and a real person's rate half-exposed. Those cells say "under 10 loans" and the count is still published. This is information, not advice, and no lender pays to appear.