At the center of the evidence is an affordability tension rather than a single rent quote. The five-digit label 60608 is both the Zillow ZIP market identifier used here and a matched Census ZCTA; a ZCTA is a statistical area and is not identical to a USPS delivery ZIP. Zillow’s June 2026 ZORI is $1,878 per month, a typical observed asking-rent index blended across rental types, following a 6.39% same-month increase from the prior year. Applying 30% of income to that monthly index produces a $75,120 required annual-income screen, versus the ACS median household income of $73,366; the resulting asking-rent-to-income screen is 30.72%. This calculation is arithmetic, not advice and not an applicant qualification rule.
That income screen should not be merged with the survey rent. In the matched Census ZCTA, ACS median gross rent is $1,295, or 45.0% below the Zillow index. ACS is a five-year survey of occupied renter homes and its gross-rent concept includes selected utilities; it does not measure current asking rents. By contrast, ZORI summarizes typical observed asking rent across rental types, rather than the costs reported by occupied survey households. The gap therefore compares unlike evidence universes and cannot establish what any current listing costs, what utilities it includes, or what a particular renter pays.
Bedroom detail adds a useful scaling device, but not observed unit rents. The studio, one-bedroom, two-bedroom, three-bedroom, and four-bedroom figures are modelled monthly ZIP estimates of $1,565, $1,665, $1,878, $2,416, and $2,792, respectively, created by scaling ZIP ZORI through the local HUD ladder. They are modelled estimates, never measured bedroom rents. HUD FMR/SAFMR is an administrative, bedroom-specific standard rather than asking rent. The provided local HUD two-bedroom standard is $1,500, placing the modelled two-bedroom estimate 25.2% above that standard; this difference does not convert either measure into a lease quote.
Backward-looking history makes the present increase look consistent with, though slightly stronger than, the longer path. Exact same-month ZORI changes annualize to 6.39% over a 1-year window, 5.67% over a 3-year window, and 6.16% over a 5-year window, so recent direction confirms the broader growth pattern rather than breaking from it. History coverage is 99.21%. Annualized monthly-return variability of 2.21% indicates that month-to-month changes in this observed series were relatively contained. Separately, the 2.96% maximum drawdown records the steepest historical peak-to-trough decline, a reason not to treat a stable path as an uninterrupted one. Transparent national discovery ranks among history-eligible ZIPs are 150 for momentum, 301 for stability, and 24 for balanced. Those are backward-looking measurements, not forecasts or investment recommendations; the contained variation and drawdown support moderate confidence in a ZIP-level snapshot, not precision for a particular unit.
The ACS ZCTA housing picture provides an occupied-household and stock backdrop, not a listing inventory. Of 33,154 housing units, 2,504 were vacant, producing a 7.55% aggregate vacancy rate. The occupied base included 18,637 renter households, a 60.81% renter share. The same survey tabulates 7,242 renter households at or above the rent-burden threshold, equal to 38.86% of renter households. Reported structure categories include 7,545 single-family units and 3,782 large-multifamily units, but those categories should not be read as a full property-type inventory. Survey burden and vacancy describe aggregate households and units; neither is proof about availability, payment pressure, or condition at any particular home.
Broader comparisons position this ZIP below the surrounding rent contexts without making those geographies substitutes for its own series. The ZIP asking-rent index is lower than the Chicago city context rent of $2,408.80, the Cook County context rent of $2,336, and the Chicago-Naperville-Elgin, IL-IN-WI metro context rent of $2,275. Each value is wider context only: Chicago is city scope, Cook County is county scope, and Chicago-Naperville-Elgin is metro scope. Their differing boundaries and rental compositions mean they cannot resolve the ZIP’s ACS-versus-ZORI gap. Still, the comparisons reinforce that the current ZIP asking-rent index is lower than all three named benchmarks, while the local income screen remains the more immediate tension.
Redfin contributes direct rolling-three-month ZIP resale evidence, a for-sale observation rather than rental transactions or rental comparables. Its median sold price was $402,409, up 11.01% year over year; 117 homes sold with a median 49 days on market. The same resale block shows inventory of 112 homes and 2.9 months of supply. Its price-negotiation signals were a 99.92% average sale-to-list ratio and a 37.75% sold-above-list share. Annualized ZIP ZORI divided by median sold price equals a 5.60% cross-source screening ratio only, not a measure of property economics. Resale price growth outpaced the rent-index change, challenging any reading that the stable rent history is moving in lockstep with the for-sale market; the two series should not be used to infer one another.
Several limits remain material. ZORI blends rental types at ZIP scale, ACS describes surveyed occupied renter homes in a statistical ZCTA, HUD supplies an administrative bedroom ladder, and Redfin records ZIP resales; none independently establishes current terms for a specific rental or sale. Before matching these data to a property, verify the street address against the ZCTA and delivery ZIP distinction, the listing’s date and asking amount, the bedroom count used in the model, and the treatment of utilities, concessions, and fees. For a sale comparison, verify that the transaction belongs to the same ZIP resale period and inspect its listing and sale records separately from rent data. The decision-critical question is whether the specific property’s timing, bedroom definition, and cost terms actually align with the evidence universe being applied.
","findings":[{"body":"Zillow’s June 2026 ZIP ZORI is $1,878, representing typical observed asking rent across rental types rather than an individual unit quote. A 30% arithmetic screen gives required income of $75,120, against ACS median household income of $73,366. This points to a narrow ZIP-level affordability tension, but it neither determines eligibility nor represents the finances of a particular renter.","title":"Current rent and income screen"},{"body":"The 1-year 6.39% increase exceeds the 3-year 5.67% and 5-year 6.16% annualized paths, so the latest direction confirms rather than reverses growth history. With 99.21% coverage, contained 2.21% annualized monthly-return variability, and a 2.96% maximum drawdown, the index history supports a steadier ZIP snapshot than a single isolated month, while remaining backward-looking.","title":"History confirms stable growth"},{"body":"ACS median gross rent is a five-year survey result for occupied renter homes and includes selected utilities, whereas ZORI is a typical observed asking-rent index. That distinction explains why the $1,295 ACS figure and $1,878 Zillow figure are not interchangeable. The studio-through-four-bedroom values are modelled estimates scaled through a local HUD standard, which is administrative and bedroom-specific rather than asking rent.","title":"Rent measures serve different purposes"},{"body":"Redfin’s rolling-three-month ZIP resale observation recorded a $402,409 median sold price and 117 sales; these are for-sale transactions, not rental comps. The 5.60% annualized-rent-to-price figure simply divides the Zillow annualized index by that median price. It can compare two source series at a high level, but does not describe a property’s operating costs, financing, or transaction-specific economics.","title":"Resale evidence is separate"}],"risks":["The rent index, the ACS ZCTA survey, the HUD ladder, and Redfin resale records have different universes and periods. Mixing them as if they were unit-level comparables can misstate current rent, utility treatment, or transaction conditions.","The matched Census ZCTA is a statistical approximation rather than a USPS delivery ZIP, and ACS figures carry survey sampling uncertainty. Population, rent, burden, and housing counts are aggregate estimates rather than current records for every address.","Historical change, variability, drawdown, and discovery ranks describe only observed ZORI through the supplied endpoint. Even broad coverage cannot establish future rent direction, future stability, or the asking amount available for a specific bedroom type.","Redfin inventory, days on market, sale-to-list, and price figures apply only to the direct ZIP resale window. They cannot verify rental availability, tenant costs, property condition, or the terms of an individual prospective sale."],"qa":[{"a":"ZORI is a ZIP-level typical observed asking-rent index blended across rental types, while ACS median gross rent is a five-year survey measure for occupied renter homes. ACS includes selected utilities and uses the matched statistical ZCTA. Different timing, populations, boundaries, and rent concepts mean the figures are comparative context, not competing quotes for the same unit.","q":"Why can ZORI and ACS median gross rent differ so much?"},{"a":"No. The studio through four-bedroom amounts are modelled monthly ZIP estimates created by scaling ZORI with the local HUD bedroom ladder. HUD FMR/SAFMR is an administrative bedroom-specific standard, not observed asking rent. The ladder provides a transparent allocation method but does not record actual advertised rents, signed leases, utilities, condition, or concessions for any bedroom type.","q":"Are the bedroom figures observed ZIP rents?"},{"a":"The exact same-month 1-year, 3-year, and 5-year changes show continued growth, with the latest annual change slightly above both longer annualized rates. Low annualized monthly-return variability and a limited maximum drawdown make the series more stable than a highly erratic index. These are historical observations only and cannot establish a future rent path or a specific listing price.","q":"What does the historical record say about the current asking-rent snapshot?"},{"a":"Redfin documents direct ZIP for-sale activity, including sold prices, sales volume, days on market, inventory, supply, and sale-to-list behavior. It does not describe rental transactions. Dividing annualized ZORI by the median sold price produces only a cross-source screening ratio, useful for comparing two reported series at a high level but not for determining property-specific economics.","q":"What does the Redfin resale block add to rental analysis?"}],"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 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