Personal loans in Sun Prairie, WI
A lender serving Sun Prairie holds a Wisconsin licence and answers to a Wisconsin regulator; no city office is involved for its 37,890 residents.
Verify the lender's Wisconsin licence against the regulator named below before borrowing in Sun Prairie. Sun Prairie ranks 20th of 605 places in Wisconsin, with a population near 37,890. State law, not city hall, decides what a lender may do to Sun Prairie's roughly 37,890 residents, and a state regulator supervises it. The trend for Sun Prairie between 2020 and 2023 is upward by roughly 5.3%. The closest larger city is Madison, WI about 12 miles away.
The Sun Prairie data picture
Read the local figures below as context; read the sourced Wisconsin table as the rulebook a lender here must follow.
- Population: about 37,890 people live here, which puts Sun Prairie 20th of 605 Census places in Wisconsin (Vintage 2023).
- Population trend: A gain of roughly 5.3% between 2020 and 2023.
- Change in people: the 2020-to-2023 comparison is a gain of about 1,917 residents.
- Size percentile: about 97% of Wisconsin communities are smaller than Sun Prairie (37,890 residents).
- Density: roughly 2,894 residents per square mile, spread over 13.1 sq mi of land.
- Land area rank: Sun Prairie's 13.1 square miles rank 60th of 605 places in Wisconsin.
- Water: Sun Prairie holds about 0.02 square miles, the 313th-largest water area in Wisconsin.
- State population share: Sun Prairie accounts for about 0.9% of everyone in Wisconsin.
- National standing: Sun Prairie ranks 1,064th of 19,457 US places.
- Growth rank: Sun Prairie ranks 28th among Wisconsin's 605 places for the 2020-to-2023 change.
- State comparison: Wisconsin's places average +0.4% for 2020-to-2023, against Sun Prairie's 5.3%.
- Density rank: Sun Prairie places 21st among Wisconsin's places by people per square mile.
- Against the state median: Sun Prairie runs about 2,894 residents per square mile, where the Wisconsin median is 800.
- Location: it lies at 43.1826, -89.2378 in the Census Gazetteer.
- Nearest larger cities: Madison (12 mi); Janesville (36 mi); Waukesha (52 mi); Menomonee Falls (56 mi); Brookfield (57 mi). Larger metros often have more branches, but online lenders reach Sun Prairie on the same terms.
- Smaller communities within reach: Windsor (5 mi); DeForest (6 mi); Cottage Grove (6 mi).
- Within a 50-mile radius: 128 smaller Census places.
- Within 100 miles: 26 places are larger than Sun Prairie.
A pre-application checklist for Sun Prairie
A sensible order of operations for a loan in Sun Prairie, home to about 37,890 people:
- Pull your credit reports first and correct any error before a lender sees the file.
- Test your amount and term in the personal loan calculator first.
- Shop at least three lenders and judge them on APR and total cost.
- Verify the lender's Wisconsin licence with the regulator listed on this page.
- Write down the purpose of the loan and your repayment plan before you apply.
- If debt is already a struggle, talk to a nonprofit credit counsellor before borrowing more.
- Look for an origination fee or prepayment penalty in the written disclosure.
The process is identical across Wisconsin; what changes is your credit file, not the fact that Sun Prairie holds 37,890 people.
Wisconsin rules behind a Sun Prairie personal loan
Every row below records a Wisconsin rule, its publisher and its retrieval date — the same rules a Sun Prairie lender must follow.
| Rule | Detail | Source |
|---|---|---|
| State lending regulator | Wisconsin Department of Financial Institutions (DFI), Division of Banking Source says: "Department" means the department of financial institutions | Wisconsin State Legislature as of 2026-09-16 |
| Maximum legal interest rate (usury cap) | 12% per year maximum ($12 per $100) on the declining principal balance, except as authorized by other statutes (Wis. Stat. § 138.05(1)(a)) Source says: At the rate of $12 upon $100 for one year computed upon the declining principal balance of the loan or forbearance | Wisconsin State Legislature as of 2026-09-16 |
| Payday lending status | Legal and licensed by the DFI Division of Banking; statewide database tracking (Wis. Stat. § 138.14) Source says: "Licensee" means a person holding a license issued by the division under sub. (5) | Wisconsin State Legislature as of 2026-09-16 |
Sun Prairie's place among Wisconsin's 605 places
Sun Prairie is the 20th-largest of 605 Census places in Wisconsin and contains about 0.9% of the state's people. On the 2020-to-2023 trend, Sun Prairie stands 28th among Wisconsin's 605 places — roughly the 95th percentile. Its roughly 2,894 residents per square mile place it 21st among Wisconsin's places. Between 2020 and 2023 the count changed by roughly 1,917 residents.
The geography behind Sun Prairie
Sun Prairie's land area is about 13.1 square miles; a further 0.02 square miles is water. With 37,890 residents, the land area yields roughly 2,894 people per square mile. The largest place in Wisconsin, Milwaukee, lies about 65 miles away. Sun Prairie has 2 larger places within a 50-mile radius. The 100-mile radius contains 26 larger places.
How a Sun Prairie personal loan is priced
With roughly 37,890 residents, Sun Prairie is a smaller city; its personal loans are typically unsecured, priced from your credit rather than the city's size. The APR tracks your credit score rather than Sun Prairie's rank of 20th in Wisconsin: a strong file may earn a single-digit rate, while damaged credit can push the rate far higher. Shortening the term on a Sun Prairie loan raises the monthly payment but cuts the interest; lengthening it does the reverse.
Common questions
What are my options in Sun Prairie if my credit is poor?
What loan size can I expect in Sun Prairie?
Do I have to pledge anything to borrow in Sun Prairie?
Does comparing loans in Sun Prairie cost me credit score points?
Nearby places
- Windsor, WI — population 9,456
- Cottage Grove, WI — population 8,880
- DeForest, WI — population 11,107
- Maple Bluff, WI — population 1,308
- Monona, WI — population 8,536
- McFarland, WI — population 9,460
- Marshall, WI — population 3,810
- Arlington, WI — population 834