At ZIP 78723, the most consequential measured tension is a rent path that has been broadly positive over a longer window but weak recently. Zillow ZORI, the direct ZIP-level typical observed asking-rent index blended across rental types, was $1,851 in June 2026. Its exact same-month one-year change was 0.21%, while the three-year change was -1.60% and the five-year change was 2.27%. Recent direction therefore breaks from the longer five-year gain rather than confirming it. Annualized variability in monthly ZORI returns was 3.17%, so a single current rent snapshot deserves moderate rather than absolute confidence. The prior peak-to-trough maximum drawdown of 7.05% further shows that the historical series has experienced meaningful retrenchment. These are backward-looking measurements, not a forecast or investment recommendation.
Source scope changes the interpretation of the current figure. The ACS 2024 five-year survey reports a $1,724 median gross rent for occupied renter homes in the matched Census ZCTA, including selected utilities; it is not an asking-rent measure. ZORI is 7.4% above that survey median, a difference consistent with comparing a current asking-rent index with a five-year survey measure of occupied homes. The five-digit label is both Zillow's ZIP market identifier and the matched Census ZCTA, but a ZCTA is a statistical area and is not identical to a USPS delivery ZIP. HUD's two-bedroom standard is $1,852 under its FMR/SAFMR framework. That administrative, bedroom-specific standard is not asking rent, and it should not be substituted for either ZORI or ACS gross rent.
The bedroom view is a modelling exercise anchored to the local HUD ladder, not a set of observed bedroom rents. Scaling the ZIP ZORI produces modelled monthly estimates of $1,473 for a studio, $1,561 for one bedroom, $1,851 for two bedrooms, $2,346 for three bedrooms, and $2,759 for four bedrooms. The close alignment of the modelled two-bedroom result with the HUD standard reflects the construction of the ladder, rather than independent market confirmation. These estimates can organize comparisons across unit sizes, but they cannot establish the advertised rent, condition, concessions, utility treatment, or availability of a particular apartment or house.
The income screen is more favorable than the burden survey at the aggregate level, creating another useful distinction. Paying the current ZORI for a year at a 30% rent-to-income threshold mechanically implies $74,040 of annual income. The matched ZCTA's ACS median household income is $100,329, and the current asking-rent-to-income calculation is 22.1%. That arithmetic is not advice and not an applicant qualification rule. Meanwhile, ACS counted 3,831 of 8,562 renter households as paying at least 30% of income toward rent, a 44.7% burden share. Because burden is reported for occupied renter households and gross rent includes selected utilities, neither that share nor the income screen proves affordability for any individual household or unit.
Housing composition supplies context without converting vacancy into an availability claim. The matched ZCTA has 17,744 housing units, with a 6.1% vacancy rate; 351 units were classified as vacant for rent. Renters account for 51.4% of occupied units. Its stock includes 9,689 single-family units and 5,542 large multifamily units, indicating that both broad structure categories matter to aggregate measures. For wider context only, Austin city context reports rent of $1,615, Travis County context reports $1,649, and the Austin-Round Rock-Georgetown, TX metro context reports $1,653; each is a wider geography, not a substitute for the direct ZIP measure. The ZIP's higher ZORI should therefore be read as a local index comparison, not as evidence that every property rents above those contextual figures.
Redfin's direct rolling-three-month ZIP resale observation introduces a for-sale-market tension. Median sold price was $579,869, up 1.73% year over year, even as the ZORI history was nearly flat over one year and negative over three years. The resale observation recorded 136 homes sold, a median 48 days on market, 391 active listings, an inventory count of 220, and 4.9 months of supply. Average sale-to-list was 98.03%, while 15.92% of homes sold above list. Those liquidity, supply, and pricing signals describe ZIP resale transactions, not rental transactions or rental comps. They challenge any simple assumption that recent asking-rent direction and resale-price direction must match. Annualized ZIP ZORI divided by Redfin median sold price equals a 3.83% screening ratio only; it is a cross-source screen, not a cap rate, net return, expected return, or property yield.
History coverage is complete at 100% across 124 monthly observations through the stated endpoint. Among history-eligible ZIPs, the transparent national discovery ranks are 2,487 for momentum, 1,876 for stability, and 2,587 for the balanced measure, where a lower rank is higher. Those discovery positions do not predict future rents and should not be treated as external quality ratings. Instead, the mixed history classification combines with the earlier variability reading to reduce confidence that the current ZORI alone represents a durable direction. The five-year increase establishes that rents were higher than the same month five years earlier, but the three-year decline and recent near-flat reading are the more immediate counterweights.
The evidence supports careful separation rather than a single all-purpose rent conclusion. ZORI is an asking-rent index, ACS describes surveyed occupied renter homes, HUD provides an administrative standard, and Redfin reports direct ZIP resale evidence. Before using any aggregate figure for a specific property, the necessary checks are the actual advertised rent, bedroom count and layout, lease term, concessions, included utilities, current availability, property condition, and recent comparable sale records if resale is relevant. A vacant-for-rent count cannot show that a particular unit is available, and the resale screening ratio cannot describe its operating costs. Does the individual listing under review actually match the bedroom, utility, timing, and transaction assumptions embedded in these separate datasets?
","findings":[{"body":"ZIP ZORI was $1,851 in June 2026, with a 0.21% one-year change, a -1.60% three-year change, and a 2.27% five-year change. The recent and intermediate measures do not confirm a simple continuing upswing. Historical variability and drawdown indicate that one current asking-rent observation should be interpreted with caution.","title":"Recent rent direction is weaker than the long window"},{"body":"A mechanical 30% screen translates the current ZIP ZORI into $74,040 of annual income, below the matched ZCTA median household income of $100,329. Yet ACS reports that 44.7% of renter households pay at least 30% of income toward gross rent. The first is arithmetic; the second is a survey-based household burden measure.","title":"Aggregate income screen and renter burden point to different questions"},{"body":"The studio-through-four-bedroom figures scale the current ZIP ZORI using the local HUD ladder. They are modelled estimates rather than measured bedroom rents, even where the two-bedroom output nearly matches the HUD standard. Actual listings can differ because bedroom count, utilities, concessions, lease terms, condition, and availability are not captured by the model.","title":"Bedroom figures are HUD-scaled model outputs"},{"body":"Redfin's direct ZIP resale observation shows a $579,869 median sold price and a 1.73% annual increase, while ZIP asking-rent history was nearly flat over one year and negative over three years. The resulting 3.83% rent-price screening ratio is useful only as a cross-source comparison, not as an operating or investment return measure.","title":"Resale evidence does not move in lockstep with rent history"}],"risks":["The ACS matched ZCTA is a five-year survey geography and not the same thing as a USPS delivery ZIP, so its household, burden, vacancy, and gross-rent figures should not be assumed to describe every address carrying the ZIP label.","Zillow ZORI is a blended typical asking-rent index across rental types, while ACS gross rent includes selected utilities and reflects occupied renter homes. Their gap is informative about source scope, not proof of a current listing premium.","The bedroom ladder is modelled from ZIP ZORI and HUD standards, so it cannot validate actual bedroom-level market rents, concessions, utility charges, lease restrictions, maintenance condition, or a unit's immediate availability.","Redfin resale measures describe for-sale transactions and listing conditions in a rolling ZIP observation. Using the annualized rent-price screening ratio as property economics would omit expenses, financing, taxes, insurance, turnover, and property-specific income."],"qa":[{"a":"They describe different evidence universes. Zillow ZORI is a current ZIP-level typical observed asking-rent index blended across rental types. ACS median gross rent is a five-year survey estimate for occupied renter homes in the matched ZCTA and includes selected utilities. The difference is not a direct measure of rent growth, listing quality, or a unit-specific premium.","q":"Why does the current Zillow rent differ from ACS median gross rent?"},{"a":"No. The studio through four-bedroom figures are modelled monthly ZIP estimates created by scaling current ZORI with the local HUD bedroom ladder. They are useful for a standardized size comparison, but they are never measured bedroom rents. A specific listing requires verification of its rent, configuration, utilities, concessions, lease term, and availability.","q":"Are the bedroom rent figures observed rents for available units?"},{"a":"The screening ratio divides annualized ZIP ZORI by Redfin's ZIP median sold price. It compares a rent index from one source with a resale-price observation from another source. It is not a cap rate, property yield, net return, expected return, or forecast because it excludes property-level income, expenses, financing, and transaction details.","q":"What does the resale screening ratio mean?"},{"a":"The current ZORI is a useful reference point, but the historical path is mixed. One-year movement was nearly flat, three-year movement was negative, and five-year movement was positive. Annualized variability and a prior drawdown show that rents have not moved in a single stable direction, so historical context should accompany any snapshot interpretation.","q":"How much weight should be placed on the current rent snapshot?"}],"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 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