Two non-interchangeable observations set the central tension in this market: Zillow’s June 2026 ZIP ZORI is $2,242, while Redfin’s direct rolling-three-month ZIP resale observation through June 30, 2026 reports a $1,044,764 median sold price. It places a typical blended asking-rent index beside a resale statistic, not rent and sale outcomes for the same property. The contrast is decision-useful because it prevents either series from being used as a substitute for the other, and it frames the later affordability and history evidence without turning the arithmetic into property-level financial performance.
Geographic scope is essential. The five-digit label 98116 is both a Zillow ZIP market identifier and a Census ZCTA match; 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, rather than a lease quote, a unit-level comparable, or an average of only one housing form. For wider context, the Seattle city context rent is $2,224, the King County context rent is $2,330, and the Seattle–Tacoma–Bellevue, WA metro context rent is $2,269. Those city, county, and metro values are wider-area context only, not replacements for the ZIP index.
The backward-looking history puts the current asking index on a mixed path. Exact same-month Zillow ZORI change was 3.61% over 1 year, 3.04% annualized over 3 years, and 5.45% annualized over 5 years. The recent direction therefore confirms an upward move versus the three-year pace, yet breaks from the faster five-year path rather than matching it. History coverage is 100%. Its 2.96% annualized monthly-return variability says prior index changes did not move in a constant line, limiting the confidence due to any single current rent snapshot as a fixed reference. Separately, the 12.05% maximum drawdown records a meaningful historical reversal. Transparent national discovery ranks are 849 for momentum, 1,560 for stability, and 941 for balanced performance among history-eligible ZIPs, where lower ranks place higher. These are measurements, not forecasts or investment recommendations.
Different source universes explain why rent figures should not be collapsed into one number. The matched Census ZCTA’s ACS 2024 five-year survey reports $2,075 median gross rent for occupied renter homes, including selected utilities; the current Zillow asking-rent index is 8.05% higher. This ACS statistic is a survey median of occupied homes, not a current asking-rent series. By contrast, the FY2026 HUD two-bedroom FMR is $2,501, an administrative bedroom-specific standard rather than asking rent. Scaling ZIP ZORI with the local HUD ladder produces modelled estimates of $1,859 for a studio, $1,924 for one bedroom, $2,242 for two bedrooms, $2,933 for three bedrooms, and $3,449 for four bedrooms. These are modelled estimates, never measured bedroom rents.
The affordability screen is arithmetically less severe than the burden result, which is an important distinction. Applying the 30% screen to the current ZIP asking index produces required annual income of $89,680. The matched ACS ZCTA median household income is $126,151, so annualized ZORI equals 21.33% of that median. That threshold calculation is arithmetic, not advice and not an applicant qualification rule. In the ACS burden measure, 41.30% of renter households are at or above the threshold. Income and burden are five-year survey estimates, while ZORI is an asking-rent index; neither statistic identifies a specific household’s income, lease terms, or rent burden.
Housing-stock and vacancy measures add a different ACS ZCTA view. The survey estimates 15,073 housing units and a 6.78% vacancy rate. The stock spans single-family and large-multifamily structures, reinforcing that Zillow’s blended index is not a unit-type quote. Of the vacant categories, 204 units are classified as vacant for rent. That category does not reveal contemporaneous availability, unit condition, asking price, or lease terms; likewise, an area vacancy rate or burden percentage cannot prove anything about a particular unit.
The for-sale evidence challenges a simple inference from rent history or the income screen. In Redfin’s direct rolling-three-month ZIP resale observation, the median sold price gained 8.83% from a year earlier; 139 homes sold and median marketing time was 7 days. Inventory was 65 homes, equivalent to 1.4 months of supply. Sale-to-list signals stay in that resale universe: the average was 101.54%, 35.59% of homes sold above list, and 67.35% left the market in Redfin’s rapid-off-market window. The sale-price change outpaced the current asking-rent change, so no rent-screen reading can act as a proxy for property pricing. The 2.58% calculation—annualized ZIP ZORI divided by median price—is only a cross-source screening ratio and has no property-level performance interpretation. None of these observations predicts later rents, prices, or transactions.
Several limits remain before these aggregates can be applied to an address. Zillow, ACS, HUD, and Redfin use different source populations, definitions, and reporting windows; ZIP and ZCTA labels match here but their underlying geography and measurement purpose still differ. Concrete property-level checks are the unit’s dated advertised asking rent, bedroom count, included utilities, lease length, concessions, physical condition, and actual availability. For a sale comparison, examine the address-level list history, recorded sale result, marketing exposure, condition, and whether it is comparable to the subject rather than treating the ZIP median as a valuation. These checks do not turn aggregate vacancy, burden, HUD standards, or the screening ratio into proof. Does the address-level evidence actually match the source definition being used?
","findings":[{"body":"Zillow’s June 2026 value of $2,242 is a ZIP-level index of typical observed asking rents across rental types. It is useful for identifying the current ZIP reading but is not a quoted rent for a selected bedroom count, lease term, or building. Seattle city, King County, and metro context rents are wider-geography context, not substitutes for the ZIP index.","title":"Current index versus wider context"},{"body":"The same-month history shows positive one-, three-, and five-year changes but not a uniform trend. The latest one-year rate is above the three-year pace and below the five-year pace. Full coverage strengthens completeness of the series, while the reported drawdown and return variability warn against treating one ZORI reading as a stable unit-level anchor. The discovery ranks are comparative research signals, not forecasts.","title":"History shows growth with a non-linear path"},{"body":"ACS median gross rent, the HUD FMR ladder, and modelled ZIP bedroom estimates answer different questions. ACS is a five-year survey of occupied renter homes that includes selected utilities. HUD is an administrative bedroom-specific standard. The studio-through-four-bedroom figures scale ZIP ZORI through that HUD ladder; they are modelled estimates, not observed rent measurements.","title":"ACS, HUD, and bedroom estimates answer different questions"},{"body":"Redfin’s rolling observation concerns homes sold and listed in the ZIP’s for-sale market. Its price change, sales pace, supply, and sale-to-list metrics must not be used as rental transactions or unit-rent comparables. The annualized-ZORI-to-median-price calculation is only a cross-source screening ratio. Faster resale price movement than current rent growth creates a useful tension, not evidence of future performance or a valuation conclusion.","title":"Resale market is a separate screening universe"}],"risks":["Zillow ZORI blends rental types and is an index, so using it as the exact rent for a particular address, bedroom count, lease term, or utility package can misstate the subject comparison.","ACS ZCTA estimates summarize a five-year survey of occupied renter homes, while the ZCTA is not a USPS delivery ZIP; sampling uncertainty and boundary differences limit address-level interpretation.","Historical positive rent changes coexist with a measured drawdown and return variation. Those backward-looking data describe prior index behavior only and cannot establish a future rent path, lease renewal, or future outcome.","Redfin resale metrics reflect a rolling ZIP for-sale observation, not rentals. A median sale price and the annualized rent-to-price screening ratio omit property-specific condition, terms, and any actual income stream."],"qa":[{"a":"They measure distinct populations and purposes. Zillow ZORI is a current ZIP asking-rent index blended across rental types. ACS median gross rent is a five-year survey statistic for occupied renter homes that includes selected utilities. HUD FMR is an administrative, bedroom-specific standard. Different dates, unit mixes, and definitions mean agreement is not required.","q":"Why do Zillow, ACS, and HUD rent figures differ?"},{"a":"No. The bedroom values are modelled estimates obtained by scaling ZIP ZORI using the local HUD ladder. They show the ladder’s relative bedroom pattern, not leases or listings observed in each bedroom group. A specific unit may differ because its asking terms, utilities, condition, and availability are not represented in the model.","q":"Are the bedroom figures observed rents?"},{"a":"It annualizes the ZIP’s current ZORI and applies a 30% share to calculate the income amount associated with that arithmetic threshold. Comparing that amount with ACS median household income provides an aggregate screen only. It is not advice, a tenant budget, an applicant qualification rule, or evidence of what a particular household can pay.","q":"What does the 30% required-income screen mean?"},{"a":"No. Redfin measures a rolling ZIP for-sale/resale observation, while Zillow measures asking rent. Dividing annualized ZORI by the Redfin median price creates a cross-source screening ratio with no property-level performance interpretation. It omits the address-specific terms and characteristics needed to characterize a particular home, sale, or lease.","q":"Does the resale evidence establish property-level financial performance?"}],"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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