St. Francisville
- County:
- Lawrence County
- County Seat:
- No
- Area (mi²):
- 0.745
- State:
- Illinois
St. Francisville is a city located in Lawrence County, Illinois. St. Francisville has a 2026 population of 527. St. Francisville is currently declining at a rate of -1.86% annually and its population has decreased by -7.38% since the most recent census, which recorded a population of 569 in 2020.
The median household income in St. Francisville is $70,833 with a poverty rate of 9.1%. The median age in St. Francisville is 29.9 years: 24.2 years for males, and 38.1 years for females. For every 100 females there are 133.7 males.