Miami is luring wealthy Americans with tax advantages, sunshine, and trophy beachfront real estate. But Fortune reports that for middle-class earners, the math gets brutal fast: to cover the mortgage on a typical Miami house, buyers need an annual income estimated between $160,000 and $215,000. In that range? A lot of people can buy. Out of it? Experts say the dream is out of reach for 80% to 85% of Americans.

The problem is not just “high prices.” It is income, supply, and affordability colliding in the same zip codes. Fortune’s real-estate figures put Miami’s buying barrier at an average home price around $652,110, based on Redfin, while the median U.S. home sits at $398,771. That gap helps explain why the wealth migration may feel visible in the form of record sales, but its effects are less “rising tide” and more “bottleneck” for everyone else.

The incentives driving the migration are real, too. Florida attracted more wealth from domestic movers than any other state in 2023, according to a Realtor.com analysis of IRS migration data. The newcomers were also among the highest earners in the country, averaging annual income of $122,530, per Miami Association of Realtors chief economist Gay Cororaton. For comparison, the average U.S. salary is $64,505. That income spread matters because the housing market is essentially a sorting machine: more high-income households arriving means demand intensifies, and the ability to bid up specific submarkets can outpace what the city can build.

Craig Studnicky, CEO of South Florida luxury real-estate firm ISG World, tells Fortune the wealth migration coming to South Florida is “unprecedented.” He argues Miami has barely enough housing to meet the middle and upper-middle classes moving in, while a separate wave of affluent buyers pushes prices on the water into “levels that are completely unpredictable.” In other words, the market is not just expensive. It is expensive in a way that makes budgeting and underwriting harder for the average household.

The billionaire headline is not imaginary either. Fortune notes that ISG World points to Ken Griffin, Citadel CEO, who bought a record-breaking $106.9 million waterfront mansion in Coconut Grove. That purchase marked the first time a house in Miami sold for more than $100 million, and Fortune also lists other ultra-wealthy residents including Jeff Bezos and ex-Google CEO Eric Schmidt. But Ryan McKeveny, managing director of equity research at U.S. housing consultancy Zelman, does not think billionaire migration meaningfully raises home prices for everyone else. He says the bigger driver is a chronic shortage of homes, years of under-building, and relentless demand across the income spectrum.

If you want the “why it feels impossible” explanation in one set of numbers, Fortune provides it. In Miami-Dade County, homes priced below $400,000 were just 2% of active single-family listings as of early 2025, according to the Miami Association of Realtors. Meanwhile, 42% of listings were priced at $1 million or more. On the renter side, only 14% of renter households in Southeast Florida could afford to buy a single-family home or condo, per the association’s 2025 housing outlook. This is a mismatch between what middle-class households can pay and what the market is offering for sale.

Regulation is adding another layer of friction, especially in condos. Studnicky points to Florida’s strict condo safety laws that followed the deadly 2021 collapse of Champlain Towers South. Florida passed legislation requiring tougher structural inspections for certain condominium and cooperative buildings three stories or higher and reaching 30 years of age. For affected owners, special assessments can cost up to hundreds of thousands of dollars. Fortune reports that some buyers are dodging those costs by choosing newer buildings instead, which can further constrain supply in the categories that middle-income buyers would typically target.

Even new building is getting stuck behind finance math. Studnicky says South Florida developers are not adding new inventory fast enough because high borrowing costs make large-scale projects harder to finance. As a result, some developers delay construction until interest rates decline and they can better manage the cost of carrying multimillion-dollar loans. At the same time, the population picture is tightening the needle: Miami-Dade County’s population grew by roughly 305,600 residents between 2010 and 2025, and county officials estimate the region needs just under 200,000 additional housing units to meet current renter demand alone.

The supply constraint is also shaped by land and building types. McKeveny tells Fortune that southeast Florida is the 35th largest in terms of U.S. home-building communities, with fewer new, reasonably-priced single family houses hitting the market. He adds that South Florida is landlocked, which limits how much inventory can be produced in the form middle-class households often want.

So what is a middle-class family supposed to do if Miami feels like it is priced for a different universe? Fortune’s experts say renting is often the pragmatic route. Studnicky argues that for modest incomes, renting can work because you can choose “certain beautiful condos on the beach” or other options without needing to absorb a mortgage at the peak of affordability stress. He specifically says that if you have an income of $75,000 a year, you can live very nicely in South Miami in a rental. McKeveny agrees renting is the most viable option for workers making less than six-figures, and says even being able to put an offer down on a $650,000 house may require lowering the price range.

In terms of what happens next, Fortune reports cautious optimism driven by market normalization rather than a magic affordability spell. McKeveny predicts home prices are likely to remain flat or dip slightly over the next year, with inventory levels gradually normalizing. Miami’s housing supply is about 10% below 2019 levels, compared with a 14% gap across the country’s 100 largest housing markets. That means Miami is “holding out in the middle of the pack,” at least in supply dynamics. McKeveny is also careful: he does not suggest Miami is “overly optimistic,” but he says, from a transaction perspective, Miami is outperforming national metrics.

For executives, investors, and board-level decision-makers watching Miami, the strategic stakes are clear. When affordability is constrained by supply scarcity, regulatory costs, and development financing, demand can concentrate in newer or higher-end product. That shapes who can qualify, what buyers will bid for, and how long inventory churn takes. Meanwhile, the presence of ultra-wealthy buyers can obscure the real story unless you separate “headline wealth” from “transaction mechanics.” In Miami, the mechanics may be telling you the same thing Fortune’s experts repeat: if you are not in the $160,000 to $215,000 mortgage-support zone, copying billionaire moves is not a strategy. It is a pricing mismatch.