At the June 2026 endpoint, this ZIP opens with an important cross-market tension: its reported Zillow ZORI is $1,776 per month, up 1.01% from a year earlier, while the direct Redfin ZIP resale observation reports a $264,840 median sold price that is 6.14% lower than the prior-year reading. Annualizing the ZIP ZORI and dividing by that sold-price median produces an 8.05% cross-source screening ratio. That arithmetic can juxtapose current asking-rent conditions with resale pricing, but it is not a cap rate, net return, expected return, or property yield. The rent index concerns asking rents, whereas Redfin records for-sale closings; neither series supplies rental transaction economics for an individual property.
History frames the split as cooling rather than a proven reversal. Exact same-month annualized ZIP ZORI changes were 1.01% over one year, 3.24% over three years, and 5.69% over five years. Thus, the most recent direction confirms a still-positive longer path but breaks from its faster long-run pace. The backward-looking series has 2.95% annualized monthly-return variability, a -3.19% maximum drawdown, and 99.28% coverage. Its transparent national discovery ranks are 1,475 for momentum, 1,532 for stability, and 1,599 for balance among history-eligible ZIPs, where a lower rank is higher. These are descriptive historical measurements, not forecasts or investment recommendations; the variability and drawdown mean any current rent snapshot needs the surrounding path for context.
The label has a crucial boundary condition: 29229 is both Zillow's ZIP market identifier and the matching Census ZCTA, but a ZCTA is a statistical area and is not identical to a USPS delivery ZIP. Zillow ZORI is a typical observed asking-rent index blended across rental types. In contrast, the ACS 2024 five-year survey reports a $1,640 median gross rent for occupied renter homes, with a $150 margin of error, and gross rent includes selected utilities. The ZIP asking index is 8.29% above that ACS figure. The FY2026 local HUD FMR/SAFMR two-bedroom standard is $1,276, and ZORI is 39.18% above it; this is an administrative bedroom-specific standard, not asking rent.
The local HUD bedroom ladder is the scaling basis for the bedroom view. Scaling ZIP ZORI by that ladder yields modelled monthly ZIP estimates of $1,436 for a studio, $1,620 for one bedroom, $1,776 for two bedrooms, $2,259 for three bedrooms, and $2,660 for four bedrooms. These estimates are modelled allocations of an all-rental-type ZIP index using HUD's local bedroom relationship; they are never measured bedroom rents, advertised comps, or a substitute for an actual unit's quoted rent. The different HUD and ZORI levels therefore do not establish an error in either universe.
Income and burden show a second tension. The ZCTA's ACS median household income is $74,043. Applying a 30% share to annualized ZORI produces a required income of $71,040 and an asking-rent-to-income screen of 28.78% at that ZIP median. This is arithmetic, not advice and not an applicant qualification rule. Yet 60.75% of ACS occupied renter households are recorded above the burden threshold. The screen uses a ZIP-wide median-income benchmark and current asking index; the burden measure covers surveyed occupied renter homes and gross rent. It cannot establish the affordability of a particular household or unit.
Housing stock tempers any broad availability conclusion. The matched ZCTA contains 21,485 housing units, a 6.34% vacancy rate, and a 29.89% renter share; these are area-level counts and shares, not a count of units currently available at a desired rent or bedroom size. In the same sentence, the ZIP's $1,776 ZORI sits above the City of Columbia city-scope rent context at $1,478, the Richland County county-scope rent context at $1,502, and the Columbia, SC metro-scope rent context at $1,555. Those city, county, and metro figures are wider-scope context, not substitutes for the ZIP asking index, ZCTA survey, HUD standard, or a property-level availability measure.
The resale tape also gives direct ZIP liquidity detail without becoming rental evidence. In the rolling three-month Redfin observation, 270 homes sold, median marketing time was 40 days, and inventory was 226 homes, equal to 2.5 months of supply. The average sale-to-list figure was 98.98%, 20.17% of sales closed above list, and 31.65% went off market within two weeks. Each signal belongs to the for-sale/resale universe, not rental transactions. The lower sold-price reading is consistent with the history's cooling interpretation more than a strong-rent-acceleration story, even though ZORI was still up from a year earlier; it does not resolve affordability for any home.
Limits matter most at the property level. A ZCTA survey and ZIP asking index should not be assigned to a specific address; modelled bedroom figures must be checked against actual advertised rent, bedroom count, lease term, included utilities, availability date, and concessions. On the for-sale side, reconcile a candidate property's list price, sale status, close date, home type, and current inventory alternatives with the direct ZIP resale measures. Verify whether a vacancy is offered for rent rather than for sale, seasonal, or otherwise unavailable. Neither area vacancy nor renter burden proves an individual unit's condition, price, or tenant outcome. Which source-defined measure actually matches the decision being examined?
","findings":[{"body":"At the reported endpoint, ZIP ZORI increased 1.01% over one year, versus annualized same-month gains of 3.24% and 5.69% over three and five years. The direct ZIP resale median sold price declined 6.14% year over year. These backward-looking measures do not predict either market, but their combination makes the current positive rent reading incomplete without the cooling history and for-sale scope.","title":"Cooling rent path meets a softer resale reading"},{"body":"ZORI, ACS, and HUD answer different questions. The $1,776 ZORI is a blended typical asking-rent index. ACS median gross rent is a survey statistic for occupied renter homes that includes selected utilities, while HUD's bedroom-specific FMR/SAFMR is an administrative standard. The displayed bedroom amounts are modelled through the HUD ladder and cannot serve as measured bedroom-rent comparables.","title":"The rent figures are not interchangeable"},{"body":"Applying the 30% screen to annualized ZORI yields $71,040 of required income, slightly below the ZCTA median household income estimate of $74,043. Yet the ACS burden result records 60.75% above its burden threshold. The contrast is compatible with different populations and definitions: a ZIP-wide median-income arithmetic screen cannot represent individual renter incomes, lease terms, utilities, or household circumstances.","title":"Median-income arithmetic differs from renter burden"},{"body":"Redfin's rolling three-month ZIP observation shows measurable resale activity, with 270 homes sold, 40 median days on market, and 2.5 months of supply. Its 98.98% average sale-to-list result and 20.17% above-list share are resale signals only. They can test whether a rent narrative aligns with the for-sale tape, but they do not measure lease transactions, property operating costs, or a property's cash flow.","title":"Resale activity is direct but remains for-sale evidence"}],"risks":["The ZCTA is a statistical geography rather than an identical USPS delivery ZIP, so an address, landlord portfolio, or advertised unit may fall outside the exact area represented by the survey and ZIP index.","ACS is a five-year survey with reported margins of error and concerns occupied homes, while current ZORI is an asking index; differences cannot be treated as measurement errors or market arbitrage.","Bedroom amounts are modelled from the HUD scaling relationship and overall ZORI, not unit observations. Included utilities, lease terms, home types, and live listing availability can produce materially different actual quotes.","Redfin resale measures are rolling ZIP-level for-sale observations. A sold-price movement or sale-to-list signal cannot identify operating costs, financing, condition, rental income, or outcomes for a particular property."],"qa":[{"a":"Zillow ZORI is a typical observed asking-rent index blended across rental types for its ZIP market identifier. It is not the median rent paid by current tenants, an estimate of a particular apartment's rent, or a bedroom-specific observation. For 29229, it supplies the current asking-rent anchor used to scale, rather than measure, the bedroom estimates.","q":"What does the $1,776 ZORI figure represent?"},{"a":"ACS is a five-year Census ZCTA survey of occupied renter homes. Its median gross rent includes selected utilities and its estimate carries sampling uncertainty. Zillow ZORI is a current ZIP asking-rent index across rental types. Because the geography match is statistical rather than an identical USPS ZIP and the populations and rent definitions differ, the two values are not competing readings of the same transaction pool.","q":"Why do ACS median gross rent and Zillow ZORI differ?"},{"a":"No. The studio through four-bedroom amounts are modelled monthly estimates created by scaling overall ZIP ZORI with the local HUD bedroom ladder. HUD FMR/SAFMR is an administrative standard, not asking rent, so the outputs do not demonstrate advertised or signed rents for any bedroom count. An actual listing's bedroom count, quoted rent, lease terms, and included utilities remain separate checks.","q":"Are the bedroom estimates measured rents for available units?"},{"a":"The Redfin figures are from a direct rolling-three-month ZIP resale observation. Median sold price, marketing time, inventory, months of supply, and sale-to-list outcomes describe homes offered and sold in the for-sale market. The annualized ZORI-to-price ratio simply combines separate sources for screening. It cannot determine a property cap rate, operating income, financing result, or lease-level rental outcome.","q":"What can the Redfin resale data establish?"}],"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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