What can be compared
Realtor.com reported a $3,900 median asking rent and 331 rental properties in September. Zillow reported a $1,121,468 typical home value in August. These figures describe different markets and cannot be converted into a sound rent-versus-buy answer by dividing one by the other.
What a household still needs
A useful comparison includes expected holding period, financing terms, cash required, taxes, insurance, condominium or association charges, maintenance, renovation, transaction costs, investment alternatives, and the exact rental and purchase options under consideration.
Market context, not a forecast
The 41.64% year-over-year increase in rental-property count on Realtor.com is a listing-supply observation. It does not establish future rents, vacancy, renewal terms, or the financial result of owning.