Warren County

Warren County sits in a narrow band on the price-to-rent spectrum that makes it difficult to underwrite as a pure cash-flow play. The gross rent multiplier implied by a $336,425 median home price against $1,267 monthly rent translates to a rent-to-price ratio of 0.0452, which falls short of the 0.8% monthly rule-of-thumb threshold most cash-flow operators use as a minimum filter. The model confirms this: at a 6.85% interest rate, a 20% down purchase produces a monthly mortgage of $1,764, estimated expenses of $444, and a projected cash-on-cash return of negative 14.58%, with estimated monthly cash flow of negative $940. The cap rate of 2.94% is below what most institutional buyers consider acceptable for single-family rentals and leaves almost no margin for vacancy, capex, or management fees. Year-over-year home price appreciation of 2.18% is modest in absolute terms but accounts for virtually all of the investment thesis here, and Warren's appreciation score of 72 out of 100 reflects that the market has been reliably moving prices higher even if income returns are thin.

The investor this market suits is not a cash-flow buyer under conventional financing. Negative $940 per month in projected cash flow at today's rates disqualifies Warren for any buyer who needs the property to service its own debt. The appreciation score of 72 and overall score of 53, sitting at the 30th percentile nationally and 96th out of 113 Missouri counties, positions Warren as a secondary appreciation play within the state, not a market leaders choose first. Where Warren makes more sense is for a buyer with a long hold horizon, a willingness to carry a modest monthly deficit in exchange for price appreciation, or one able to underwrite a lower purchase price through value-add that compresses the entry cost. If an operator can acquire meaningfully below the $336,425 median, the cap rate and cash-on-cash picture improve quickly. The affordability index of 58 suggests the market is not deeply affordable, which caps organic rent growth unless local income rises commensurately.

The taxInsurance picture at least does not add outsized burden. Missouri's state-average effective property tax rate of 0.97% is flagged as normal, and the combined annual tax and insurance load comes to $4,743, or $395 per month. That figure is already baked into the $444 estimated monthly expenses shown in the model, so it is not a hidden surprise, but it is a real line item. As always, the 0.97% figure is a state-average estimate per the Tax Foundation's 2024 data, and actual Warren County or township assessments may differ. Investors should pull the county assessor's millage rate for any specific parcel before finalizing their underwrite, particularly since assessed value ratios vary and can move meaningfully at the parcel level even when the county-wide average looks manageable.

The primary risk in Warren is concentration. At 35,729 residents, this is a small county, and thin rental demand depth means that above-average vacancy in a specific submarket or property type can skew individual returns materially. The market's stability score of 50 out of 100 suggests nothing particularly insulating, and in a small population base, any single employer reduction or demographic shift can ripple through rental absorption faster than it would in a larger metro. The data does not provide economic anchor information, so no specific employer assessment is possible here, but investors should independently verify the employment base before committing to a long hold. Price appreciation at 2.18% annually is real but not dramatic enough to paper over sustained negative cash flow if local conditions soften.

Compared to the neighboring counties in the data, Warren presents a notably different profile. Oregon County ($165,121 median) and Carroll County ($157,728 median) offer entry prices roughly half of Warren's but score similarly or slightly better overall, at 54 and 55 respectively. Dallas County ($229,545) and Webster County ($249,368) split the difference on price. Webster County is the most instructive comparison: at a $249,368 median, $972.50 median rent, and a rent-to-price ratio of 0.0468, Webster actually scores a slightly better 56 overall while costing $87,000 less per property at median. Its rent-to-price ratio is also modestly higher than Warren's 0.0452. Polk County, with a rent-to-price ratio of only 0.0363 on a $274,935 median, is the weakest cash-flow option among the neighbors. An investor should choose Warren over its neighbors specifically when their primary thesis is home price appreciation in a market that has shown 2.18% annual growth and an appreciation score of 72, accepting that none of these Missouri counties, Warren included, are offering compelling cash-flow at current rates.