Columbia County’s decision tension is that price appreciation and a measurable gross yield sit beside listing concessions and net migration loss. Operators seeking current income should investigate parcel-level costs and rental comparables; buyers depending on rapid resale or untested flood costs should be cautious. At Zillow’s 2026-06 observation, county median home value rose 6.43%, while the FHFA repeat-transaction HPI rose 6.44% in 2025. They align directionally but have separate vintages and methods; the FHFA index is not a home value.
At that Zillow observation, median home value was $489,080 and median asking market rent was $2,158 monthly; the supplied gross yield was 5.29% of price in annual market rent before costs. This is a market-rent measure, not HUD’s two-bedroom FMR, which is a payment standard and must not be substituted into yield. The effective property-tax rate was 1.40%, with a $4,852 median annual tax. These county measures frame gross income and one carrying cost, but not expenses or a property’s tax bill.
QCEW’s 2025 annual average covered employment at workplaces increased 0.14%; this is neither resident employment nor unemployment. Education and health services was the largest disclosed private supersector, not the whole economy. Migration presents mixed demand evidence: 112 more tax-return households moved out than in, yet incoming movers’ average AGI exceeded outgoing movers’ by $18,949. Investor mortgages accounted for 33 of 477 purchases, or 6.92%, so non-occupant participation exists but is limited in the reported purchase set. Realtor.com’s 2026-06 MLS evidence shows 330 active listings and 15.23% with reductions: visible asking supply and seller concessions, not closed sales or buyer demand.
Modeled annual climate loss equals 0.12% of building value and inland flood is the named dominant hazard; this is a modeled county-level ratio, not parcel-specific flood loss. The thesis can fail if flood insurance or mitigation costs materially exceed the gross-income cushion, if MLS sellers need deeper concessions before a resale, or if renter demand differs by submarket from the county median. Flood-zone and elevation data, insurance quotes, vacancy and operating-expense history, debt terms, lease comparables, and closed-sale data are not published; their absence prevents net-cash-flow underwriting, parcel hazard assessment, and sale-price validation.