Washington County

Washington County sits at a gross rent-to-price ratio of 4.12%, which translates directly into a 2.68% cap rate at the median price point. At a $555,664 purchase price with 20% down, the numbers produce a monthly mortgage of $2,913 at 6.85%, and after adding estimated operating expenses of $667, the all-in monthly outlay runs roughly $4,580 against median rent of $1,906. The resulting cash flow is negative $1,673 per month, and the cash-on-cash return lands at -15.71%. These are not numbers you massage into acceptability with optimistic assumptions. The overall investment score of 37 out of 100, ranking in the 2nd percentile nationally, tells the same story. Prices are down 1.52% year over year, so there is no near-term appreciation tailwind to offset the carry costs. This is a market where the math does not work for a conventional leveraged buy-and-hold at current prices and rates.

The cash-flow score of 32 and appreciation score of 42 place Washington County squarely in the appreciation-buyer category, but even that story is complicated right now. A buyer willing to accept significant monthly losses in exchange for long-term equity gains would need high conviction that prices will recover and compound meaningfully from a base that already saw a 1.52% decline. The affordability index of 21 out of 100 tells you the local renter pool is stretched, which limits how aggressively rents can be pushed and constrains the value-add operator who typically underwrites rent bumps as the core thesis. An all-cash buyer reduces the carry pain but still faces a 2.68% cap rate, which competes poorly against risk-free alternatives. The stability score of 50 is the one relative bright spot, suggesting the market does not swing wildly, but stability in a low-yield market means you are reliably losing money each month rather than erratically doing so.

The taxInsurance data does not introduce a major additional headache here. The state-average effective property tax rate of 0.97% carries a monthly tax-and-insurance combined load of $537, which is already baked into the $667 estimated expenses figure. The 0.97% rate is flagged as normal, so you are not fighting an outsized tax burden on top of the cap rate compression. That said, the note from Tax Foundation 2024 is worth taking seriously: this is a state-average estimate, and your actual county or township rate may differ, so verify the assessor's figure before finalizing your underwrite. Insurance at 0.19% annually adds $1,056 per year, which is modest and consistent with Oregon's relatively low catastrophic weather exposure compared to coastal or fire-prone markets.

The principal risk here is concentration and price-level entry. With a median home price of $555,664 and an affordability index of 21, the investor is buying into a market where the asset prices reflect demand from a high-earning employed base rather than from rent economics. If that employment base softens, downward price pressure on an already declining market could extend the losses beyond the monthly cash-flow hit. The population of 599,541 provides scale, so this is not a thin single-employer town where one closure creates a vacancy crisis, but the low affordability score signals that a meaningful portion of potential renters are already priced toward their ceiling.

Compared to its neighbors, Washington County does not offer a compelling trade-off. Clatsop County comes in at a nearly identical rent-to-price ratio of 4.15% and a $50,000 lower median price, with a marginally higher overall score of 38. Benton County, also at an overall score of 40 (the highest in this peer group), carries a slightly lower ratio of 3.96% but at a $548,593 median price that is close enough to Washington that the difference is not the deciding factor. Hood River's 3.88% ratio at $670,311 is worse on both dimensions. Deschutes at 4.11% ratio and $656,914 median is more expensive with a lower score of 35. The honest read is that none of these neighboring markets offer dramatically better cash-flow math, which reflects an Oregon-wide structural issue with price-to-rent ratios. Washington's size and population density give it more liquidity and a deeper rental pool than smaller neighbors like Hood River or Clatsop, which matters if you need to exit. An investor would choose Washington over its peers primarily for that liquidity and scale, not because the income math is better, and only after accepting that this is a long-duration appreciation hold with consistent monthly losses underwritten from day one.