Updated 2026 · Based on median market data for St. Louis, MO
St. Louis sits in the Midwest with a population of 293,310 growing at 0.1% annually. The median home costs $205,000 while rents average $1,180/mo, producing an estimated cap rate of 4.40%. This is a moderate market that rewards careful deal sourcing.
St. Louis works best for experienced investors with a clear strategy — Section 8, student housing, or deep value-add rehabs. The 4.40% cap rate at median prices is tight, so success depends on buying below market, forcing appreciation through renovation, or accessing above-market rent streams through niche tenant bases.
Target properties priced 15-25% below the $205,000 median — around $164,000 or less. At this price point with $1,180/mo rents, your cap rate improves to roughly 6.0%. Factor in 1.24% property taxes ($2,542/yr), budget 5% of gross rent for maintenance, and underwrite to a 6.8% vacancy rate. On a 20% down conventional loan at 7%, monthly PITI will run approximately $1,402.
Every deal should be evaluated individually using our calculator tools. Median data provides a starting point; actual returns depend on the specific property, financing, and your management approach.
Run the numbers on a specific St. Louis property using our cap rate calculator (pre-filled with St. Louis data). Compare St. Louis against similar markets in the Midwest region. If you're considering a value-add approach, try our BRRRR calculator to model a rehab scenario.