Personal loans in Willowbrook, IL
Roughly 9,038 residents live in Willowbrook, the 238th-largest community in Illinois. With roughly 9,038 residents, Willowbrook is a small town, and the lending rules its borrowers live under are written in Illinois, not by the city.
If debt is already a strain, a nonprofit credit counsellor can help Willowbrook residents before they take on more. A single loan can carry different costs on either side of a state line, and Willowbrook sits on the Illinois side of that line. Population in Willowbrook dropped about 2.1% over the three years from 2020 to 2023. The next larger city is Burr Ridge, IL about 2 miles away.
The Willowbrook data picture
Set out below is Willowbrook's local context next to the state-level rules that reach every lender here.
- Population: about 9,038 people live here, which puts Willowbrook 238th of 1,294 Census places in Illinois (Vintage 2023).
- Population trend: A drop of about 2.1% from 2020 to 2023.
- Absolute change: 190 residents lost between 2020 and 2023.
- Size percentile: bigger than about 82% of the places in Illinois, with 9,038 residents in Willowbrook.
- Population density: 3,510 people per square mile on 2.6 square miles of land.
- By land area: Willowbrook ranks 417th among Illinois's 1,294 places, at 2.6 sq mi.
- Water: Willowbrook holds about 0.05 square miles, the 282nd-largest water area in Illinois.
- Share of state population: Willowbrook's 9,038 residents are about 0.1% of Illinois.
- National rank: Willowbrook sits 3,373rd by population among the 19,457 places in this dataset.
- Growth rank: Willowbrook's 2020-to-2023 change ranks 617th of 1,294 places in Illinois.
- Against the state trend: Willowbrook's 2.1% change compares with a Illinois average of -2.0% across its 1,294 places.
- Density rank: Willowbrook places 99th among Illinois's places by people per square mile.
- Density vs Illinois: Willowbrook's 3,510 people per square mile compare with a state median of 993.
- Location: coordinates 41.7673, -87.9421 (US Census Bureau Gazetteer).
- Nearest larger cities: Burr Ridge (2 mi); Hinsdale (2 mi); Westmont (2 mi); Darien (3 mi); Western Springs (3 mi). Lenders licensed in the state serve Willowbrook whether or not they keep a local branch.
- Nearest smaller places: Clarendon Hills (2 mi); Indian Head Park (2 mi); Countryside (3 mi).
- Smaller neighbours: 155 places smaller than Willowbrook sit within 50 miles.
- Larger places within 100 miles: 244.
What Illinois law requires in Willowbrook
Read the table as a lender's compliance picture for Willowbrook: the rule, the sourced figure, the publisher and the date.
| Rule | Detail | Source |
|---|---|---|
| State lending regulator | Illinois Department of Financial and Professional Regulation (IDFPR), Division of Financial Institutions Source says: "DFI licenses, charters, and examines a wide variety of financial products and services including: Consumer and Sales Finance and Collection Agencies". | Illinois Department of Financial and Professional Regulation as of 2026-09-16 |
| Small-loan / installment lender licensing | Consumer Installment Loan Act license required from the Director of Financial Institutions (loans above 9% APR) Source says: "No person ... shall engage in the business of making loans of money ... except ... after first obtaining a license from the Director of Financial Institutions". | Illinois General Assembly (Illinois Compiled Statutes) as of 2026-09-16 |
| Installment lender net-worth requirement | $30,000 minimum positive net worth (plus $25,000 surety bond) Source says: "every applicant shall prove ... that the applicant has and will maintain a positive net worth of a minimum of $30,000". | Illinois General Assembly (Illinois Compiled Statutes) as of 2026-09-16 |
How Willowbrook compares across Illinois
Within Illinois, Willowbrook holds roughly 0.1% of all residents, the 238th-largest share among 1,294 places. On the 2020-to-2023 trend, Willowbrook stands 617th among Illinois's 1,294 places — roughly the 52th percentile. At about 3,510 people per square mile, Willowbrook is the 99th most densely settled place in Illinois. Between 2020 and 2023 the count changed by roughly 190 residents.
How personal loans work in Willowbrook
Willowbrook is a small town of about 9,038 people, and the personal loans written here are mostly unsecured — no collateral, so the lender leans on your credit file. A lender serving Willowbrook's 9,038 residents must disclose the APR and finance charge in writing before you sign. The term you choose in Willowbrook decides the split between a comfortable payment and the total interest you pay.
The geography behind Willowbrook
Willowbrook covers about 2.6 square miles of land, with 0.05 square miles of water inside its boundaries (Census Gazetteer). The resulting density is about 3,510 people per square mile. The state's population centre of gravity, Chicago, is roughly 14 miles away. Within 50 miles of Willowbrook there are 186 larger Census places. The 100-mile radius contains 244 larger places.
Borrowing reach in Willowbrook
With about 3,510 residents per square mile, Willowbrook is fairly dense, and 186 larger Census places sit within 50 miles. What is available to Willowbrook's 9,038 borrowers is set by Illinois licensing and your own credit, not by how many branches are nearby. The nearest bigger place is Burr Ridge, IL about 2 miles away.
Common questions
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Nearby places
- Burr Ridge, IL — population 11,023
- Clarendon Hills, IL — population 8,562
- Hinsdale, IL — population 17,297
- Westmont, IL — population 23,933
- Indian Head Park, IL — population 3,900
- Darien, IL — population 21,698
- Western Springs, IL — population 13,290
- Willow Springs, IL — population 5,688