Mercer County poses a price-momentum-versus-carrying-cost test: investigators able to verify rent and parcel flood exposure may examine it, while buyers relying on appreciation alone should be cautious. Zillow’s county observation is labeled 2026-06, with a median home value of $173,161 and an 8.20% year-over-year increase. FHFA’s separately labeled 2025 annual repeat-transaction HPI rose 4.23%. The HPI is not a home value; its direction can corroborate Zillow, but their methods and vintages cannot be averaged.
Measured market rent is not published, so gross yield cannot be computed. The published HUD FMR is a payment standard, not an asking-rent estimate, and cannot substitute for market rent. The effective property-tax rate is 1.96%, which must be screened against purchase price and operating income; parcel assessments, insurance, financing terms, and actual tax bills are not published. This prevents a net-cash-flow conclusion even though the Zillow value supplies a price reference.
MLS listing-market evidence is mixed, not closed-sale evidence or proof of buyer demand: 26 active listings sit alongside 43 median days on market and 10.35% of listings with price reductions. QCEW reports 3,190 annual covered jobs at workplaces in the county; it is neither resident employment, unemployment, nor a forecast. Education and health services is the largest disclosed private supersector, not the full economy. Net migration was minus 30 tax-return households; movers entering averaged $54,912 AGI versus $58,304 for leavers, calling for tenant-demand verification.
Inland flood is the dominant hazard and modeled annual climate loss is 0.17% of building value, not a parcel-specific insurance quote. Non-occupant investors represented 11.31% of 168 purchase mortgages, showing participation without establishing price-setting power. The thesis can fail if verified rents do not carry costs, site-level flood and insurance conditions differ from county modeling, or visible listings do not convert to completed transactions. Next checks are market-rent comps or rent rolls, parcel tax and insurance quotes, flood-zone and claims records, and closed-sale/pending detail.