ZIP 33131 presents a high current asking-rent level alongside a softer resale backdrop. Zillow’s typical observed asking-rent index, blended across rental types, is $3,779 per month and is 1.6% above its same-month prior-year level. For wider-context comparison only, the Miami city-context asking-rent value is $3,004, the Miami-Dade County context is $2,886, and the Miami-Fort Lauderdale-Pompano Beach, FL metro context is $2,695. Those comparisons establish that the ZIP index is elevated relative to each broader geography, but they do not convert city, county, or metro values into ZIP rental comps.
The rent-history record is complete and backward-looking rather than predictive. Same-month annualized ZORI change was 1.6% over one year, 0.7% over three years, and 6.2% over five years. Recent direction therefore remains positive but breaks from the much faster longer-run pace. Monthly rent changes produced 3.6% annualized variability, which reduces the confidence warranted by any single current index reading in this high-variability ZIP. The worst observed peak-to-trough decline was 4.1%, so the historical path was not uninterrupted. Coverage is 100% across 138 observations. Transparent national discovery ranks of 1,893 for momentum, 2,348 for stability, and 2,457 for the balanced measure are descriptive comparison tools, not forecasts or investment recommendations.
Direct ZIP resale evidence creates the central tension with positive asking-rent history. Redfin’s rolling-three-month ZIP for-sale observation reports a $609,862 median sold price, down 12.6% year over year, with 157 homes sold and a 151-day median marketing time. Inventory stands at 678 homes and months of supply is 13.1, while the average sale-to-list result is 94.1%. These are resale liquidity and pricing signals, not rental transactions or property operating results. Annualized ZIP ZORI divided by the median sold price equals a 7.4% cross-source screening ratio only; it is not a cap rate, property yield, net return, or expected return. Falling resale pricing and prolonged marketing challenge any simple reading of a still-rising rent index.
The bedroom view is a modelled estimate rather than a set of measured bedroom rents. Scaling ZIP ZORI through the local HUD bedroom ladder produces monthly estimates of $2,896 for a studio, $3,079 for one bedroom, $3,779 for two bedrooms, $5,065 for three bedrooms, and $5,852 for four bedrooms. The local HUD two-bedroom standard sits materially below the ZIP index, with the index 62% higher. HUD FMR or SAFMR is an administrative, bedroom-specific standard and not asking rent; it supplies the relative ladder used in this model. Accordingly, a reader should not treat any rung as evidence that a particular available apartment is offered at that amount.
Affordability measures require a separate evidence universe. The matched Census ZCTA ACS 2024 five-year survey reports median gross rent of $3,124, which includes selected utilities and is 21% below Zillow’s current asking-rent index. It also reports median household income of $144,138, with a $25,820 margin of error. Applying the mechanical 30% screen to the asking-rent index yields required annual household income of $151,160 and an asking-rent-to-income ratio of 31.5%. This is arithmetic, not advice or an applicant qualification rule. Of 8,289 surveyed renter households, 3,858, or 46.5%, reported spending at least 30% of income on rent; that survey burden does not establish the finances of any particular household or unit.
The ACS housing profile highlights both a large multifamily base and a substantial vacant-unit count. Of 18,783 housing units in the matched ZCTA, 5,622 were vacant, a 29.9% vacancy rate; 3,501 of those vacant units were classified as seasonal. Large multifamily structures account for 18,050 units, compared with 477 single-family units. This composition and vacancy evidence describe surveyed housing stock, not a live availability feed. A ZCTA is a Census statistical area and is not identical to a USPS delivery ZIP, even though the five-digit 33131 label is used here as both the Zillow ZIP market identifier and the matched Census ZCTA.
The broader context sharpens the affordability contrast without changing the ZIP-level conclusion. Miami city context shows a higher renter share, lower vacancy, and a higher rent-burden share than the matched ZCTA; Miami-Dade County context likewise carries a lower asking-rent benchmark and lower vacancy than the ZIP survey profile. The metro context also has a lower asking-rent benchmark and a lower rent-to-income measure than the ZIP’s mechanical screen. These wider-area statistics are useful calibration points only. They cannot explain why an individual listing is priced as it is, nor can they be substituted for ZIP rental evidence, ACS household outcomes, HUD standards, or direct ZIP resale observations.
The practical reading is not that one source overrides the others, but that each answers a different question. Zillow identifies current typical asking-rent conditions; ACS describes occupied renter homes over a survey period; HUD supplies administrative standards; and Redfin records recent ZIP resale activity. Before relying on any current-rent snapshot, verify the actual advertised rent, bedroom count, lease term, included utilities, concessions, furnishing status, building type, and listing availability. For a purchase-related screen, verify sale date, condition, ownership constraints, recurring expenses, financing assumptions, and comparable transaction details. Those checks are necessary because neither vacancy, rent burden, modelled bedroom estimates, nor resale metrics prove the economics or availability of a specific property.
","findings":[{"body":"Zillow’s ZIP asking-rent index is above the city, county, and metro context levels, while its latest same-month gain is modest compared with the five-year annualized history. That combination supports an elevated current-rent reading but a slower recent growth cadence. The historical series is complete, yet its high-variability classification means a single endpoint should not be treated as a stable trend conclusion.","title":"Current rent remains elevated, but growth has slowed"},{"body":"The direct ZIP rolling-three-month resale dataset shows lower median sale pricing, long marketing time, substantial supply, and sales below list on average. These for-sale observations do not measure rental demand or rental transactions. They do, however, create a decision tension: positive asking-rent change occurs alongside weaker resale liquidity and lower sale prices, so neither universe should be used as a shortcut for the other.","title":"Resale conditions challenge a simple rent-strength narrative"},{"body":"Studio through four-bedroom amounts are modelled by applying the local HUD bedroom ladder to the ZIP ZORI level. This makes the estimates internally consistent with the ZIP index and local HUD relative standards, but does not establish measured rents by unit size. HUD FMR or SAFMR remains an administrative standard, while Zillow ZORI remains a blended typical asking-rent index across rental types.","title":"Bedroom figures are a HUD-scaled model, not observed comps"},{"body":"The ACS matched-ZCTA median household income is below the income produced by applying a 30% arithmetic screen to current Zillow asking rent. ACS also reports a material share of renter households burdened at or above that threshold. The comparison is useful for scale, but ACS is a five-year survey of occupied renter homes and cannot qualify applicants or identify the financial position of a particular resident.","title":"Survey affordability is close to the mechanical asking-rent screen"}],"risks":["High ZCTA vacancy includes a large seasonal component and is not a real-time inventory measure. It cannot establish whether a particular rental is available, discounted, habitable, or suitable for a given lease period.","The ACS income, gross-rent, renter-count, and burden measures are survey estimates with margins of error and cover occupied renter households. They are not current asking rents, household underwriting data, or applicant qualification standards.","The resale data cover direct ZIP for-sale transactions over a rolling three-month window, not rental transactions. Median price, supply, marketing time, and sale-to-list evidence should not be translated into operating income or property-level return assumptions.","The bedroom estimates inherit both the blended nature of ZORI and the relative HUD ladder. Actual rents can differ by lease terms, utilities, furnishing, concessions, condition, and building-specific availability."],"qa":[{"a":"They describe different populations and measurement methods. Zillow ZORI is a ZIP-level typical observed asking-rent index blended across rental types, whereas ACS median gross rent is a five-year survey estimate for occupied renter homes and includes selected utilities. The ACS geography is a matched Census ZCTA, a statistical area that is not identical to a USPS delivery ZIP.","q":"Why does the asking-rent index differ from ACS median gross rent?"},{"a":"No. The studio through four-bedroom figures are modelled estimates created by scaling the ZIP ZORI level with the local HUD bedroom ladder. They are useful for showing a consistent relative size pattern, but they are not measured bedroom rents, live listings, lease quotes, or evidence of what any specific unit will rent for.","q":"Are the bedroom estimates evidence of observed studio or two-bedroom rents?"},{"a":"It divides annualized current ZIP asking rent by 30% to show the household income associated with that arithmetic benchmark. It is not financial advice, a recommendation, an affordability determination, or an applicant qualification rule. Actual affordability can differ with household size, utilities, debts, subsidies, lease structure, and other expenses not supplied here.","q":"What does the 30% required-income calculation mean?"},{"a":"The ratio simply divides annualized ZIP ZORI by the direct ZIP median sold price from Redfin’s rolling-three-month resale observation. It can flag a cross-source contrast between current asking-rent level and sold-price level, but it omits expenses, vacancies, taxes, financing, condition, and transaction differences. It is not a cap rate, yield, net return, or expected return.","q":"How should the resale screening ratio be used?"}],"sources":[{"key":"apartment_list_time_on_market","name":"Apartment List Time on Market — listing liquidity","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/category/data-rent-estimates"},{"key":"apartment_list_vacancy","name":"Apartment List Vacancy Index — rental vacancy","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/apartment-list-vacancy-index-methodology"},{"key":"census_zcta_facts","name":"Census ACS five-year — ZCTA housing and income","release":"ACS 2024 5-year ZCTA","pulledAt":"2026-08-08","url":"https://api.census.gov/data/2024/acs/acs5.html"},{"key":"hud_zip","name":"HUD USPS crosswalk and Small Area FMRs — ZIP rent fallback","release":"ZIP-CBSA 2025Q4 + SAFMR 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