South Barrington at a glance
- Population: about 4,974, 330th by size in Illinois of 1,294 places (Census Vintage 2023 subcounty estimate).
- 2020 Census base: 5,074 residents (US Census Bureau, 2020 Census).
- 2020 to 2023 change: a decline of roughly 2.0% between the 2020 count and the 2023 estimate (US Census Bureau).
- Rank among Illinois places: 330th largest of 1,294 (US Census Bureau).
- Size percentile: about 74% of Illinois's Census places are smaller (US Census Bureau).
- Coordinates: 42.0890 latitude, -88.1572 longitude (US Census Bureau Gazetteer).
- Nearest larger cities: Hoffman Estates, IL (2 mi); Inverness, IL (3 mi); Barrington, IL (5 mi); Streamwood, IL (5 mi); Schaumburg, IL (6 mi); each population is a US Census Bureau estimate.
- Nearest smaller places: Barrington Hills, IL (4 mi); East Dundee, IL (5 mi); Deer Park, IL (6 mi) (US Census Bureau estimates).
What a personal loan costs in South Barrington
A personal loan gives you the full amount at once and spreads repayment over a set number of months at a fixed payment.
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.
Pre-qualification is a good first filter: it shows the rate and amount a lender may offer before you agree to a full application and a hard inquiry.
Illinois lending rules that apply in South Barrington
The sourced rows below are the rules a licensed lender must follow when lending in Illinois, and therefore in South Barrington.
| Rule | Detail | Source |
|---|---|---|
| Payday lending status | Permitted under license; capped at 36% annual percentage rate (payday loans) Source says: "shall not contract for or receive a charge exceeding a 36% annual percentage rate ... for a payday loan". | Illinois General Assembly (Illinois Compiled Statutes) 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 |
| 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 |
| 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 |
| Maximum legal interest rate (usury cap) | 9% annual percentage rate (general written-contract interest cap) Source says: "it shall be lawful for the parties to stipulate or agree that an annual percentage rate of 9%, or any less sum". | Illinois General Assembly (Illinois Compiled Statutes) as of 2026-09-16 |
How to compare offers in South Barrington
Before you commit to a personal loan in South Barrington, work through these steps:
- 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 Illinois using the regulator named above.
- Read the disclosure for origination fees and any prepayment penalty before you sign.