Lake St. Louis, MO vs Sullivan, MO

The cost of living difference between Lake St. Louis, MO and Sullivan, MO is dramatic. Sullivan is 56.8% cheaper than Lake St. Louis, a gap that translates to thousands of dollars per year in household expenses. Lake St. Louis has a cost index of 113 while Sullivan sits at 72, making this one of the more striking comparisons on our site. Relocating between these cities would require a serious reassessment of budget and lifestyle expectations.

On the housing front, median rent in Lake St. Louis is $1,608/month compared to $862/month in Sullivan — a 87% difference. Home values follow the same pattern: Sullivan is more affordable at $153,100 median vs $375,300.

Median household income in Lake St. Louis is $123,427 compared to $60,137 in Sullivan (+105.2%). While Lake St. Louis is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Lake St. Louis spend roughly 15.6% of their income on rent, less than the 17.2% in Sullivan.