Polk County

Polk County's gross rent-to-price ratio sits at 0.51% per month (6.2% annualized), which sounds adequate until you run the full underwrite. At a $275,796 purchase price with 20% down and a 6.85% rate, the modeled mortgage comes to $1,446 per month against $1,180 in median rent, producing negative cash flow of $679 per month before any vacancy or capital expenditure assumptions. The cap rate of 3.34% confirms this is not a cash-flow market at current prices and financing costs. Where Polk does show some life is on the appreciation side: a 72 appreciation score and 2.23% year-over-year price growth suggest this county is drifting toward the appreciation end of the spectrum. The overall score of 59, landing at the 49th national percentile, describes a market that is neither broken nor exceptional, competent middle of the pack.

That profile shapes who belongs here. A cash-flow buyer running conventional financing should walk away: a cash-on-cash return of -12.85% at the modeled leverage level means the property is consuming capital every month rather than generating it. The investor best suited to Polk is either an all-cash or low-leverage appreciation buyer who can tolerate thin or negative operating income while waiting on price appreciation, or a value-add operator who can acquire below the $275,796 median and either raise rents meaningfully above $1,180 or force appreciation through renovation. The affordability index of 71 and median price below $300,000 leave room to buy below median in distressed situations, which is where the value-add thesis gets realistic. A stability score of 50 means this county does not offer the kind of locked-in tenant base that makes low-cash-flow markets forgivable, so any investor here is taking on both income risk and execution risk simultaneously.

No economic anchors or employer data were provided for Polk County, so the underlying drivers of rental demand, whether driven by a single institution, a manufacturing base, or pure residential overflow from a larger metro, cannot be assessed from the available data. That itself is worth flagging: a county with a population of 31,877 and a stability score of 50 is small enough that tenant demand may be concentrated in ways that create material vacancy exposure if local economic conditions shift.

The combined monthly tax and insurance figure of $324, based on a state-average property tax rate of 0.97% and an insurance rate of 0.44%, already sits inside the $413 estimated monthly expense load. Missouri's 0.97% state-average effective rate is flagged as normal, not a headwind or a tailwind in isolation, but in a market where gross rent only covers $1,180 and the mortgage alone runs $1,446, that $324 in fixed carry costs is not trivial. The caveat applies: 0.97% is a state-average estimate per Tax Foundation 2024 data, and actual Polk County or township-level rates may differ, so verify the assessor's current millage before finalizing any underwrite.

Compared to the neighboring counties in the data, Polk does not lead on any single metric that would make it the obvious choice. Saint Charles County carries a higher median price of $360,670 but generates $1,699.79 in median rent for a rent-to-price ratio of 0.57% monthly, meaningfully better than Polk's 0.51%, and its overall score of 60 edges Polk out despite the higher price point. Franklin County at $254,867 and an overall score of 60 offers a slightly lower entry price with a comparable rent-to-price ratio of 0.509%, making it a reasonable alternative for the same appreciation-leaning thesis at lower absolute capital deployment. Christian County at $306,158 scores 58 overall with a rent-to-price ratio of 0.532%, slightly better yield per dollar than Polk but at a higher price. Cape Girardeau County is the outlier: at $236,877 its median price is $39,000 below Polk's, but its median rent of $908.42 and rent-to-price ratio of 0.46% are both worse, meaning the lower price does not actually buy better cash-flow performance. The case for choosing Polk over its neighbors is narrow. If an investor has a specific local relationship, a sourced off-market deal below $230,000, or a value-add project with a clear path to rents above $1,400, Polk becomes arguable. On a straight comparison of the data provided, Franklin County and Saint Charles County both present comparably scored markets with pricing or yield characteristics that are at least as attractive.