Washington County presents a price-momentum-versus-underwriting-evidence tension: an investor needing current income support should investigate rather than treat appreciation as sufficient, while a buyer exposed to carrying-cost variability should be cautious. Zillow reports a $238,708 median home value for 2026-06, up 4.91% year over year. FHFA's repeat-transaction HPI rose 1.41% in 2025. That index is not a dollar home value and uses a different method and labeled period from the Zillow measure; the gap warrants validation, not a blended growth conclusion.
No county market rent is published, so gross yield cannot be computed against the stated home value. HUD's $962 monthly FMR is a two-bedroom payment standard, not measured asking rent, and cannot fill that gap. The 1.37% effective property-tax rate and $2,788 median annual tax establish a documented carrying-cost consideration. Inland flood is the dominant hazard, and modeled climate loss equals 0.13% of building value per year. Together, tax and hazard evidence make property-level tax bills, flood zone, insurance terms, and replacement-cost assumptions necessary before a cash-flow conclusion.
Annual 2025 QCEW employment at county workplaces rose 2.55%; it is neither resident employment nor an unemployment series. Trade, transportation, and utilities, the largest disclosed private supersector, creates concentration to check. Tax-return migration was net negative by 5 households, yet inbound movers' average income exceeded outbound movers' by $11,913; this mixed signal does not establish future housing demand. Non-occupant investors accounted for 26 of 304 purchase mortgages, or 8.55%, a limited but visible presence rather than proof of competitive pressure.
Realtor.com provides no median MLS listing price, active-listing count, days on market, price-reduced share, or pending ratio. That absence prevents an assessment of visible supply, seller concessions, marketing time, and near-term buyer conversion; listing evidence would not be closed-sale evidence in any event. Next checks are market rents by unit condition, parcel-specific taxes, flood-zone and insurance quotes, and comparable closed transactions. County-level migration, employment, and climate measures cannot establish a property's lease-up, insurance, or resale outcome.