O'Fallon at a glance
- Population: about 94,074, 7th by size in Missouri of 937 places (Census Vintage 2023 subcounty estimate).
- 2020 Census base: 91,332 residents at the 2020 Census (US Census Bureau, 2020 count).
- 2020 to 2023 change: a gain of roughly 3.0% between the 2020 count and the 2023 estimate (US Census Bureau).
- Rank among Missouri places: 7th-largest of 937 (US Census Bureau, Vintage 2023 estimate).
- Size percentile: roughly 99% of places in Missouri rank below it by population (US Census Bureau).
- Coordinates: 38.7847, -90.7207 (US Census Bureau Gazetteer).
- Nearest larger cities: St. Louis, MO (28 mi); Columbia, MO (87 mi); Springfield, IL (90 mi); each population is a US Census Bureau estimate.
- Nearest smaller communities: Dardenne Prairie, MO (3 mi); Lake St. Louis, MO (4 mi); Cottleville, MO (4 mi) (Census populations).
What a personal loan costs in O'Fallon
The defining feature of a personal loan is the fixed installment: the same payment every month until the term ends.
The APR is the comparable price of a loan since it folds in fees; model any offer with the personal loan calculator first.
Because interest accrues for longer, a longer term means a lower installment and a higher total cost — decide which matters more to you.
Before you borrow, decide what the loan is for and whether the monthly payment fits a budget you can already meet without taking on new debt.
Missouri lending rules that apply in O'Fallon
Read the table as the compliance picture for a lender serving O'Fallon: label, sourced figure, publisher and date.
| Rule | Detail | Source |
|---|---|---|
| State lending regulator | Missouri Division of Finance (Department of Commerce and Insurance) Source says: "We regulate state-chartered banks, trust companies, consumer credit facilities, mortgage brokers, and savings and loan institutions" | Missouri Division of Finance as of 2026-09-16 |
| Additional loan fee cap (30+ day loans) | Up to 10% of principal, capped at $100 (RSMo § 408.140) Source says: "a fee, not to exceed ten percent of the principal amount loaned not to exceed one hundred dollars may be charged by the lender" | Missouri Revisor of Statutes as of 2026-09-16 |
| Maximum legal interest rate (usury cap) | 10% per annum, or the higher published 'market rate' (RSMo § 408.030) Source says: "a rate of interest not exceeding ten percent per annum on money due or to become due upon any contract" | Missouri Revisor of Statutes as of 2026-09-16 |
| Payday lending status | Legal and licensed — unsecured loans of $500 or less require a license from the Director of the Division of Finance (RSMo § 408.500) Source says: "in the business of making unsecured loans of five hundred dollars or less shall obtain a license from the director of the division of finance" | Missouri Revisor of Statutes as of 2026-09-16 |
| Small-loan / installment lender licensing | Consumer credit lenders licensed and regulated by the Division of Finance's consumer credit section (Chapters 367 and 408, RSMo) Source says: "The consumer credit section of the Missouri Division of Finance is responsible for licensing and regulating various types of consumer finance companies" | Missouri Division of Finance as of 2026-09-16 |
How to compare offers in O'Fallon
Before you share your details with a lender in O'Fallon:
- 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 Missouri using the regulator named above.
- Read the disclosure for origination fees and any prepayment penalty before you sign.