At its June 2026 reading, Zillow’s ZIP-level ZORI places typical observed asking rent in 19145 at $1,736 a month, up 5.4% from the same month a year earlier. ZORI is a blended asking-rent index across rental types, so it is not a quote for a particular advertised home. The 19145 label is both Zillow’s ZIP market identifier and its Census ZCTA match; a ZCTA is a statistical area and is not identical to a USPS delivery ZIP. At a 30% rent-to-income screen, that monthly index annualizes to required income of $69,440. The matched ZCTA’s median household income is $71,965, making the arithmetic asking-rent-to-income ratio 28.9%. This screen is arithmetic, not advice or an applicant qualification rule, and it does not identify whether any household has that income, faces other expenses, or can rent a specific unit.
The ACS 2024 five-year survey offers a different universe: occupied renter homes in the matched ZCTA, rather than current advertised rentals. Its median gross rent is $1,384, a measure that includes selected utilities, and the current Zillow asking-rent index is 25.4% higher. That gap does not make either series incorrect; it reflects differing populations, timing, and rent definitions. HUD’s FY2026 two-bedroom fair market rent standard is $1,800, with the ZIP ZORI at 96.4% of that amount. HUD FMR or SAFMR is an administrative, bedroom-specific standard rather than asking rent, so it should not be treated as a direct lease comparable. Together, the three sources frame different questions about the ZIP’s rental market.
The bedroom view is expressly modelled rather than observed. It scales the ZIP ZORI through the local HUD bedroom ladder, producing modelled monthly estimates of $1,341 for a studio, $1,456 for one bedroom, $1,736 for two bedrooms, $2,083 for three bedrooms, and $2,324 for four bedrooms. These estimates preserve the local HUD size relationship while anchoring the level to Zillow’s all-type asking-rent index. They are not measured bedroom rents, and they cannot establish what a particular unit, building, lease term, utility package, or condition level will command. Their value is as a consistent size-adjustment lens when comparing otherwise unspecified rental options.
The backward-looking history broadly confirms the current upward direction rather than breaking from it. Exact same-month one-year rent growth was 5.4%, compared with 4.2% annualized across three years and 5.0% annualized across five years; the latest pace is above both longer-path measures. History coverage is complete, supporting a more continuous reading of the index rather than one based on isolated observations. The 2.3% annualized monthly-return variability is modest, which lends more confidence to the current ZORI snapshot as an index reading, although not as a property quote. Its maximum drawdown reached 2.7%, showing that even this relatively steady series has experienced retrenchment. Transparent national discovery ranks among history-eligible ZIPs were 397 for momentum, 353 for stability, and 72 for the balanced measure. These are backward-looking measurements, not forecasts or investment recommendations.
The matched ZCTA’s housing and renter profile adds a second tension to the income screen. Renter-occupied homes represent 42.7% of occupied housing, while the overall vacancy rate is 10.5%; 622 vacant homes are classified as available for rent. The housing stock is dominated by single-family structures, with comparatively fewer large multifamily buildings, an important composition distinction from an apartment-only market reading. Among surveyed renter households, 4,131—or 50.3%—reported paying at least 30% of income toward gross rent. Thus, the ZIP-level asking-rent-to-income screen near the area median sits beside a materially higher burden prevalence among occupied renter homes. Neither the vacancy count nor burden share proves availability, affordability, condition, or lease terms for any particular unit.
Wider geographies provide calibration, not substitutes for ZIP evidence: in Philadelphia city context, the asking-rent index is $1,814 and the renter burden share is 52.3%; in Philadelphia County context, the asking-rent index is also $1,814 and the HUD FMR is $1,810; in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro context, the asking-rent index is $1,928. The ZIP’s current Zillow reading is below each of those context rent benchmarks, while its renter burden share is below the city context figure. Those comparisons should remain scoped to their named city, county, and metro geographies. They are useful for locating 19145 within broader data, but they do not replace the ZIP’s ZORI, ZCTA survey, HUD ladder, or address-level evidence.
Redfin supplies a separate for-sale signal through a direct rolling-three-month ZIP resale observation, not rental transactions. The median sold price was $301,932, up 4.1% year over year, with 135 homes sold and median marketing time of 56 days. Inventory stood at 201 homes, rising 15.5% from a year earlier, and months of supply measured 4.5. Sale-to-list evidence was less than full-price on average at 97.5%, while 24.5% of sales closed above list. The resale evidence therefore partly confirms the rent history’s positive direction through higher sold prices, yet expanded inventory and below-list average execution challenge an interpretation of uniformly tight conditions. Annualized ZIP ZORI divided by median sold price equals a 6.9% cross-source screening ratio only; it is not a cap rate, net return, expected return, or property yield.
The principal limitation is that each series answers a different question at a different level of aggregation. Zillow describes typical observed asking rents across rental types; ACS summarizes occupied renter households and selected utilities; HUD defines administrative bedroom standards; and Redfin records ZIP resale activity. A property-level review should verify the actual advertised rent, bedroom count, lease duration, included utilities, concessions, availability date, condition, and recent comparable listings before linking a unit to the modelled ladder. On the resale side, the address-specific sale record, list history, physical condition, and transaction terms require separate review. The useful question is not whether one dataset overrides the others, but which source universe matches the decision being examined.