Miami-Dade County

Miami-Dade sits at a median home price of $519,529 against a median rent of $2,821, producing a gross rent-to-price ratio of 0.0652, or roughly 78 cents of monthly rent per $1,000 of purchase price. The model cap rate comes in at 4.24%, which is thin but not dismissible in a coastal Florida context. The more pressing number is cash flow: at a 6.85% financing rate, a 20% down payment generates a monthly mortgage of $2,723, and after adding estimated expenses of $987, the property runs a modeled deficit of $889 per month. That's a cash-on-cash return of negative 8.93% on a $103,906 equity injection. Appreciation has historically been the thesis here, but the market is showing a 3.04% year-over-year price decline, and the county's affordability index of 20 out of 100 signals that the median household income of $64,215 is severely mismatched to ownership costs. The overall score of 45 out of 100, landing at the 15th national percentile and 43rd out of 67 Florida counties, reflects a market that is neither cheap to enter nor particularly rewarding to finance at current rates.

The numbers most clearly favor an appreciation buyer with long time horizon and the balance sheet to carry negative monthly cash flow, and even then, the entry thesis requires conviction that the 3.04% price decline is a temporary reset rather than the beginning of a structural correction. A cash-flow buyer running conventional financing should treat the negative $889 monthly figure as disqualifying unless they can bring substantially more equity to the table, identify assets trading below the county median, or capture above-average rents through furnished or short-term strategies that the underlying data does not address. A value-add operator has a theoretical path if they can acquire below $519,529 and push rents above $2,821, but the affordability index of 20 is a ceiling warning: the renter pool at the upper end of the rent curve is constrained by a median income that converts to roughly $1,605 in monthly gross rent capacity at a 30% threshold.

Combined monthly tax and insurance on a median-priced asset runs $675, representing $8,105 annually against a gross rent of approximately $33,856. That is a 24% gross-revenue drain before mortgage, maintenance, or management, which matters when you are already modeling negative cash flow. The state-average effective property tax rate used here is 0.89%, flagged as normal, so it does not represent a disproportionate headwind. The insurance rate of 0.67% adds $3,481 annually. Both figures are state-average estimates per Tax Foundation 2024 methodology, and actual Miami-Dade county or municipal assessments may differ, so verify at the parcel level before finalizing any underwrite.

The primary risks in Miami-Dade are concentration, insurance market fragility, and affordability compression. The county's economic base is heavily weighted toward tourism, trade, hospitality, and real estate services, all of which are cyclical. The affordability index of 20 is the lowest in the provided dataset and reflects a market where renter cost burden is already extreme, limiting the ability to push rents further without increasing vacancy risk. On the insurance side, the 0.67% state-average rate may be an underestimate for a coastal Miami-Dade property; insurers have been repricing and withdrawing from South Florida specifically, and a buyer should obtain actual quotes before closing rather than relying on modeled estimates. Price trajectory is also a risk factor: a 3.04% annual decline in a market where the exit thesis depends on appreciation requires a margin of safety in purchase price or a multi-year hold assumption.

Compared to its neighbors, Miami-Dade does not win on any of the quantitative metrics that matter for rental underwriting. Broward County offers a lower median price of $419,725 and a higher rent-to-price ratio of 0.0705, meaning more gross rent per dollar invested and a lower equity requirement. Palm Beach County's ratio of 0.0690 also beats Miami-Dade's 0.0652, at a median price of $456,009. Nassau County trails on the rent-to-price ratio at 0.0523 and is not a natural substitute. Lee County, at a median of $339,141 and a ratio of 0.0657, offers a lower capital commitment with roughly equivalent gross yield. Jefferson County's median of $292,262 is the lowest in the group, though rent data is not provided, making direct comparison incomplete. An investor should choose Miami-Dade over its neighbors only when the specific thesis involves a named asset below the county median with a identifiable rent or value-add angle, or when portfolio-level diversification into a major gateway market justifies the carry cost. For yield-first buyers, Broward is the more logical entry point in the same metro, offering better rent economics at a lower price point with the same regional demand drivers.