Waterloo at a glance
- Population: 3,611 people, the 188th-largest place among Wisconsin's 605 Census places (US Census Bureau, Vintage 2023).
- 2020 Census base: 3,494 people (US Census Bureau, 2020 Census count).
- 2020 to 2023 change: up about 3.3% from the 2020 Census base to the 2023 estimate (US Census Bureau).
- Rank among Wisconsin places: 188th of 605 by population (US Census Bureau, Vintage 2023).
- Size percentile: roughly 69% of places in Wisconsin rank below it by population (US Census Bureau).
- Coordinates: latitude 43.1835, longitude -88.9900 (US Census Bureau Gazetteer).
- Nearest larger cities within 120 miles: Marshall, WI (4 mi); Lake Mills, WI (8 mi); Columbus, WI (11 mi); Sun Prairie, WI (12 mi); Cottage Grove, WI (13 mi) (US Census Bureau).
- Nearest smaller places: Deerfield, WI (10 mi); Reeseville, WI (11 mi); Cambridge, WI (12 mi) (US Census Bureau estimates).
What a personal loan costs in Waterloo
A personal loan is structured as an installment plan, with a set number of monthly payments and a fixed amount due each time.
Because the APR includes origination and finance charges, it is the honest comparison number; the personal loan calculator turns an APR and term into a monthly payment.
Stretching the term lowers the monthly payment but raises the total interest you pay, so the smallest payment is not automatically the cheapest loan.
Shop with more than one lender and treat pre-qualification as an estimate, since the final terms follow a full application.
Wisconsin lending rules that apply in Waterloo
The table lists the Wisconsin rules that apply to a loan made in Waterloo, each with the regulator that published it.
| Rule | Detail | Source |
|---|---|---|
| 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 |
| Small-loan / installment lender licensing | Licensed lender license required from the Division of Banking (Wis. Stat. § 138.09) Source says: Before any person may do business under this section, that person shall first obtain a license from the division. | Wisconsin State Legislature as of 2026-09-16 |
| 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 |
How to compare offers in Waterloo
Before you share your details with a lender in Waterloo:
- Pull your free credit reports and dispute any error — it is the cheapest way to improve the rate you are offered.
- Run your figures through the personal loan calculator on this site so you know the payment before a lender quotes one.
- Pre-qualify with at least three lenders and compare the APR, not the interest rate.
- Check that the lender is licensed in Wisconsin using the regulator named above.
- Read the disclosure for origination fees and any prepayment penalty before you sign.