Philadelphia ZIP 19139 presents a split screen between a current asking-rent index and household benchmarks. In June 2026, Zillow ZORI stood at $1,456 per month, 3.21% above its same-month reading a year earlier. ZORI is a typical observed asking-rent index blended across rental types; it is neither a signed-rent series nor a bedroom-specific quotation. That label is both Zillow’s ZIP market identifier and the match for the Census ZCTA used here. A ZCTA is a statistical area, however, and it is not identical to a USPS delivery ZIP. That distinction matters when ZIP rental evidence is compared with survey housing data.
That rent reading meets a less firm liquidity picture in Redfin’s direct rolling-three-month ZIP resale observation, which describes for-sale transactions rather than rentals. Median sold price was $169,962, 0.02% lower than a year earlier. 85 homes sold, and median marketing time was 65 days. Inventory totalled 199 homes, 22.78% above its prior-year level, alongside 7.1 months of supply. The average sale closed at 94.6% of list price; 16.9% sold above list. Annualizing ZIP ZORI and dividing by the median sold price produces a 10.28% cross-source screening ratio only. Near-flat resale pricing and larger inventory challenge a simple translation of positive rent and history signals into equally tight resale conditions; this is for-sale evidence, not rental transaction evidence.
The backward-looking Zillow history provides a coherent but slowing growth record. Exact same-month annualized changes were 3.21% for 1-year, 3.76% for 3-year, and 4.65% for 5-year comparisons. The latest direction therefore confirms the longer positive path rather than breaking it, although its pace trails both longer windows. The series has 100% coverage. Its transparent national discovery ranks are 777 for momentum, 506 for stability, and 282 for the balanced measure, with a lower rank stronger among history-eligible ZIPs. Those ranks and rates are historical discovery measurements, not forecasts, investment recommendations, or probabilities of a future rent outcome.
Variation tempers the confidence attached to one current rent snapshot. Monthly ZORI return variability annualizes to 2.38%, a restrained figure within this ZIP’s own history that still shows movement was not perfectly smooth. Separately, maximum drawdown reached 1.44%, meaning the largest historical peak-to-trough reversal was limited relative to the cumulative upward record. That combination supports using current ZORI as a consistent time-series reference, while still leaving uncertainty across rental types, condition, lease terms, and individual asking prices. It provides historical context only and cannot establish a rent for a particular home.
Bedroom figures translate that blended index through the local HUD ladder rather than report observed unit rents. Using the FY2026 ladder’s relative steps, the modelled monthly estimates are $1,126 for a studio, $1,223 for one bedroom, $1,456 for two bedrooms, $1,747 for three bedrooms, and $1,951 for four bedrooms. The ladder anchors the two-bedroom estimate against a supplied HUD standard of $1,500. HUD FMR/SAFMR is an administrative, bedroom-specific standard, not asking rent, and the packet describes the local ladder as ZIP SAFMR or county-derived. These are modelled estimates, never measured bedroom rents; their use is to show a scaled size pattern, not to replace unit-level rental evidence.
Affordability uses a separate household survey universe. In the matched Census ZCTA, the ACS 2024 five-year survey of occupied renter homes reports median gross rent of $1,187; gross rent includes selected utilities. It is lower than ZORI, but the measures are not interchangeable because one is a survey median for occupied homes and the other is an asking-rent index. Median household income is $40,947. Applying the stated 30% screen to current ZORI gives required income of $58,240 and an asking-rent-to-income arithmetic result of 42.7%. This required-income screen is arithmetic, not advice or an applicant qualification rule. The survey also estimates 52.9% of renter households bear rent burdens at or above that threshold, an aggregate condition that does not prove the burden of any household or unit.
Housing composition provides another aggregate boundary. The ACS ZCTA contains 23,639 housing units, including 4,733 classified vacant, a 20.0% vacancy rate. Renters represent 61.2% of occupied households; the stock includes 14,962 single-family units and 2,732 units in large multifamily structures. Vacancy and burden are area-level summaries, not proof that a particular unit is available, affordable, or rented at a given price. For wider context only, the Philadelphia city scope reports an asking-rent value of $1,813.93, the Philadelphia County scope reports $1,814, and the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro scope reports $1,928. Each wider-scope value sits above the ZIP index, but city, county, and metro measures are context rather than ZIP rental comparables.
Several limits remain material. ZORI blends rental types, ACS is a sampled five-year estimate with margins of error, HUD is an administrative benchmark, and Redfin is a resale window; their dates, populations, and methods do not line up as interchangeable comparables. Property-level review would need to verify the address geography, property type, bedroom count, current asking price, utility inclusions, lease term, concessions, condition, marketing status, and actual availability. A resale comparison also needs the specific sale date, list history, and transaction status. These checks determine whether a real unit resembles any aggregate measure, while the supplied data cannot answer that question itself. Which unit-specific facts would materially change the comparison?