St. Charles at a glance
- Population: roughly 71,800 people; 8th of 937 places in Missouri (Census Vintage 2023 subcounty estimate).
- 2020 Census base: 70,577 people (US Census Bureau, 2020 Census count).
- 2020 to 2023 change: population rose about 1.7% (US Census Bureau Vintage 2023 estimate vs 2020 Census).
- Rank among Missouri places: 8th by size among 937 communities (US Census Bureau).
- Size percentile: roughly 99% of places in Missouri rank below it by population (US Census Bureau).
- Coordinates: mapped at 38.7957, -90.5154 by the US Census Bureau Gazetteer.
- Nearest larger cities (within 120 miles): O'Fallon, MO (11 mi); St. Louis, MO (18 mi); Springfield, IL (83 mi); Columbia, MO (98 mi) (US Census Bureau populations).
- Nearest smaller places: Champ, MO (5 mi); St. Peters, MO (5 mi); Bridgeton, MO (6 mi) (US Census Bureau estimates).
What a personal loan costs in St. Charles
With an installment loan the payment is fixed for the life of the loan, so the schedule is predictable from the first month to the last.
APR is the figure that lets you compare like with like, since it wraps fees into the rate; run your own numbers with the personal loan calculator.
The term is the lever: extend it and the payment falls while total interest climbs; shorten it and the reverse happens.
A payment that strains the budget is a warning sign; a smaller loan or a little more saving time is the safer route.
Missouri lending rules that apply in St. Charles
Every figure in the table below is sourced to a publisher with a date; where a state does not publish a number, we say so rather than estimate.
| 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 St. Charles
The order below is a sensible way to approach a loan in St. Charles:
- 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.