Union County

Union County's gross rent-to-price ratio sits at 4.74%, which places it firmly in appreciation territory rather than cash-flow territory. At a $339,511 median purchase price and $1,341 median rent, the spread between income and carrying costs is wide in the wrong direction. The model underwrite bears this out: at 6.85% financing with 20% down, monthly mortgage comes to $1,780, estimated expenses add $469, and the result is negative $907 per month in cash flow, a cash-on-cash return of -13.94%. The cap rate of 3.08% is below what most serious buy-and-hold investors require to justify the illiquidity and management overhead of a physical asset. The one number that cuts the other way is appreciation: 5.71% year-over-year price growth and an appreciation score of 88 out of 100 signal that this market has been moving, and moving consistently. The overall score of 58 and a national percentile rank of 46 put Union in the middle of the pack nationally, though it ranks 10th out of 36 Oregon counties, suggesting it competes reasonably well within state.

This is an appreciation play, not a cash-flow play, and the numbers make that binary pretty clear. A buyer who needs their rental to self-fund from day one has no business underwriting Union County at current prices and rates. The cash-flow score of 41 confirms this is a market where covering the mortgage from rent alone requires either a very large down payment, a well-below-median acquisition, or a value-add project that materially increases rents. An investor already holding paid-down assets elsewhere who can absorb the negative carry while banking on price growth is the profile that fits here. The affordability index of 57 and median price of $339,511 suggest the market is not cheap, but it is not yet priced like a coastal Oregon market either. A value-add operator who can source off-market at a discount to median and push rents above the $1,341 median through renovation has a clearer path to acceptable returns, but even then the margin is thin at current cap rates.

The county's population of 26,286 is small enough to matter as a risk factor. Thin markets like this can show strong appreciation numbers during upcycles and then stall or reverse sharply when regional economic conditions shift, because the tenant and buyer pools are both shallow. Demand for rentals in a county this size tends to be concentrated around a limited number of employers or institutions, and the data does not include specific economic anchors, so no employer-level assessment is possible here. What the numbers do suggest is that whoever is driving that 5.71% appreciation is paying attention to Union County for a reason, whether that is migration from higher-cost Oregon metros, agricultural or institutional demand, or recreational and lifestyle factors, but investors should do their own diligence on the demand drivers before committing capital.

On carry costs, the combined monthly tax and insurance load is $328, using Oregon's state-average effective property tax rate of 0.97% and an insurance rate of 0.19%. The 0.97% rate carries a "normal" flag, meaning it is not a meaningful tailwind or headwind relative to national norms, though the standard caveat applies: this is a state-average estimate, and your actual county or township rate may differ, so pull the assessor's current bill before finalizing your underwrite. At $328 per month, tax and insurance represent a real but not punishing slice of gross rent, roughly 24 cents of every dollar of rent collected going to just those two line items before you touch debt service or maintenance.

The specific risk worth naming is market concentration. With 26,286 residents, a single large employer reducing headcount, a university enrollment decline, or a regional economic contraction could meaningfully compress rental demand and price appreciation simultaneously. The data does not support a vacancy or crime assessment, but small-population rural Oregon counties are inherently more susceptible to single-event demand shocks than diversified metros. Regulatory risk in Oregon also deserves a mention: Oregon has a statewide rent control framework that limits annual rent increases on qualifying units, which compresses the upside on value-add strategies that rely on rapid rent growth to justify acquisition basis.

Against its neighbors, Union's picture sharpens. Klamath County offers a slightly better rent-to-price ratio at 5.16% versus Union's 4.74%, a lower median price of $305,427, and a comparable overall score of 57. Umatilla County is the clearest alternative: its rent-to-price ratio of 5.86% materially outperforms Union's, its median price of $303,262 is $36,000 lower, and its overall score of 61 edges Union's 58. For a cash-flow-oriented investor, Umatilla is the better fit on the numbers presented. Baker County and Harney County score 60 each, and Harney's median of $204,470 puts it in a different price tier entirely, likely appealing to investors with lower acquisition budgets or higher risk tolerance for rural illiquidity. Union County makes the most sense over its neighbors when the investor's primary thesis is appreciation, is comfortable absorbing negative carry, and sees something specific in Union's price trajectory that the other markets are not showing. At 5.71% year-over-year price growth and an appreciation score of 88, Union is the strongest appreciation story in this peer group, but investors who need cash flow to service their capital structure should look at Umatilla first.