Saint Clair County

Saint Clair County posts an 8.45% year-over-year home price gain on a median of $218,978, which is the headline number that defines this market's personality. The appreciation score of 84 out of 100 and a state rank of 9 out of 113 Missouri counties confirm that price momentum here is real and relative to peers, not just a rounding error. The cash flow score, however, comes in at zero, and the cap rate and cash-on-cash return fields are unpopulated, which tells you something important before you even run a proforma: this is not a market where the rent check covers the mortgage and puts money in your pocket from day one. The affordability index of 83 and a median price under $220,000 keep the entry point accessible, but without rent data in the dataset, underwriting a specific return requires local rent comps pulled from the ground.

The 84 appreciation score and 8.45% price growth make Saint Clair most suitable for the patient buy-and-hold investor whose thesis is equity accumulation rather than monthly cash flow. If you need a property to carry itself from month one, the zero cash flow score should stop you here. If you are willing to accept modest or break-even cash flow in exchange for a market ranked in the top 8% of Missouri counties on appreciation, the math can work, provided you are not over-leveraged. The affordability score of 83 is a tailwind for entry, meaning you are not buying at a price point that requires heroic rent levels just to service debt. A value-add operator could find opportunity in a low-median-price market with strong price appreciation, since forced equity through renovation is amplified when the surrounding market is already lifting values, but that thesis requires careful confirmation of local absorption and buyer depth in a county of only 9,330 people.

Population of 9,330 is the single most important number for understanding the risk profile here. This is a small, rural county, and that scale creates real concentration risk. A handful of large employers leaving or a single demographic shift has an outsized effect compared to a metro with hundreds of thousands of residents. The dataset does not include economic anchor data for Saint Clair County, so no specific employers or institutions can be cited. What the stability score of 50 out of 100 does signal is that the economic base is neither particularly diversified nor particularly fragile by Missouri rural standards, but it sits squarely in the middle, which for a county this size means investors should independently verify what is driving the rental demand before committing.

On carry costs, the combined monthly tax and insurance estimate comes in at $257, using Missouri's state-average effective property tax rate of 0.97% and an insurance rate of 0.44%. The tax flag is flagged as normal, meaning the rate is neither a meaningful headwind nor a tailwind relative to the national landscape. At $257 per month, taxes and insurance are a manageable line item on a $218,978 purchase, but keep in mind this figure is derived from a state-average estimate. Actual county and township rates in Saint Clair can differ, sometimes materially, and you should pull the county assessor data before finalizing any underwrite. The 0.97% rate does not distort the cash flow picture the way a 2%+ rate would, but in a market where cash flow is already under pressure, every dollar of carry cost matters.

The risks in Saint Clair are primarily structural. A population of 9,330 means thin tenant pools, limited comparables, and slower liquidity when you want to exit. Price appreciation at 8.45% is encouraging, but in a small rural market that appreciation can be driven by a small number of transactions, making the YoY figure less statistically stable than it would be in a larger sample. Regulatory risk is not flagged in the data, but rural Missouri markets generally carry less tenant-protection legislation than urban ones, which is a mild operational positive. The bigger concern is simply demand depth: if you own multiple units and turnover clusters, filling vacancies in a sub-10,000-population county takes longer than in a county seat with a university or regional hospital anchoring demand.

Compared to the neighboring counties in the dataset, Saint Clair competes directly with Pettis County and Butler County on overall score (73 vs. 73 and 70 respectively), but those two neighbors have published rent data that Saint Clair lacks. Pettis County carries a rent-to-price ratio of 0.0676 on a $191,272 median, and Butler County shows 0.0673 on a $160,556 median. Both ratios suggest barely adequate cash flow at best, but at least they give you a starting point. Livingston County scores highest of the group at 76 and comes in at a $188,828 median, making it potentially the better choice for an investor who weights overall score and affordability together. Andrew County and Clinton County are priced higher at $281,483 and $275,256 respectively, with overall scores of 73 and 70, meaning you are paying more for no measurable score advantage. Choose Saint Clair over its neighbors specifically when your thesis is appreciation in a low entry-price market and you have a longer hold horizon, but default to Pettis or Livingston if you need rent data transparency and a slightly more diversified demand base to underwrite cash flow with confidence.