RentMarker Research · published ZIP evidence

Asking-rent pressure and renter burden can tell different local stories.

We compared 1,500 published ZIP reports using current asking rent, household income, observed renter burden and two separately labelled rent benchmarks.

Explore the atlas Download every row
Published ZIP rows1,500

Every row links to a complete local ZIP report.

Median asking share26.6%

Annualized current ZORI divided by ACS median household income.

Median burden49.3%

Renter households spending at least 30% on gross rent.

Both above median495

Agreement between two unlike, independently measured pressure signals.

The decision question

Where does current asking rent look difficult to support—and where does the household record disagree?

Current Zillow ZIP ZORI divided by ACS median household income gives a simple asking-rent share. Across this published set, the median is 26.6%. It answers a useful but narrow question: how large would twelve months of the current asking-rent index be relative to the median household income? It does not know a renter’s bedroom requirement, utilities, debt, taxes, household size or actual lease.

ACS renter burden answers a different question. It measures the share of renter households already spending at least 30% of income on gross rent in the ACS sample. The published-set median is 49.3%. Because ACS is lagged and includes occupied units, it should not be treated as a validation of current ZORI. Agreement is a stronger pressure signal. Disagreement is a reason to investigate turnover, unit mix, income distribution and the time gap—not a defect to average away.

Every published ZIP shown

Two pressure measures, four descriptive patterns

Clay points are above both sample medians. Emerald points include split-signal and lower-pressure observations.

Each point represents one published ZIP report. Dashed lines are national sample medians. Right indicates more annualized current asking rent per median household income; up indicates a larger share of renter households with gross rent burden of at least 30 percent.18%0%33%31%48%63%64%94%79%126%Annualized current ZORI / ACS median household income →Renter households burdened 30%+ →
Complete published set

The corpus does not collapse into one verdict

Every ZIP enters exactly one group. Median boundaries organize evidence rather than define what is affordable.

Four bars partition every published ZIP using the sample median of each independent pressure measure.Both measures above median495 · 33.0%Asking-rent share above median255 · 17.0%Observed burden above median255 · 17.0%Both measures below median495 · 33.0%Median splits describe this published corpus; they are not affordability standards.
Regional context

Regional medians preserve three separate scales

Income share, observed burden and Zillow/HUD ratio are displayed together for comparison but never normalized into a score.

Grouped horizontal bars compare three separately scaled median measures for the four Census regions.Northeast163 ZIPsincomeburdenHUD ratio36.1%48.7%1.13×Midwest219 ZIPsincomeburdenHUD ratio24.9%45.3%1.05×South624 ZIPsincomeburdenHUD ratio25.7%50.1%1.00×West494 ZIPsincomeburdenHUD ratio26.1%50.3%0.95×
Benchmark discipline

A Zillow-to-HUD gap is not proof that a ZIP is overpriced.

In 744 of 1,500 published rows, current Zillow ZORI is at or above HUD’s two-bedroom FMR; the median ratio is 1.00×. HUD FMR is an administrative benchmark built for a specific program purpose and bedroom count. ZORI is a current asking-rent index across its observed rental universe. The ratio reveals definition-sensitive distance. It does not reveal concessions, lease terms, quality or an address-level fair rent.

The ACS comparison is different again. Current ZORI is at or above ACS median gross rent in 1,232 rows, with a published-set median ratio of 1.16×. ACS gross rent reflects occupied units and may include utilities. A larger ratio can be consistent with current listings running ahead of the occupied stock, but the data cannot isolate why. For that reason the atlas exposes both ratios and never blends Zillow, HUD and ACS into one rent estimate.

Twelve transparent examples

High, split and lower signals from every Census region

Three deterministic examples per region demonstrate both agreement and counter-signals. They are not recommendations.

ZIP / placeRegionPatternAsking rentRent / incomeBurdenZillow / HUDZillow / ACS
10002 · New York, NYNew York CountyNortheastBoth measures above median$4,875120.9%50.2%1.86×3.97×
10027 · New York, NYNew York CountyNortheastAsking-rent share above median$3,85077.5%46.5%1.47×2.51×
19130 · Philadelphia, PAPhiladelphia CountyNortheastBoth measures below median$1,94620.8%32.2%0.78×1.04×
60624 · Chicago, ILCook CountyMidwestBoth measures above median$1,80463.6%62.3%1.17×1.55×
68526 · Lincoln, NELancaster CountyMidwestObserved burden above median$1,41014.9%67.2%1.34×1.04×
68135 · Omaha, NEDouglas CountyMidwestBoth measures below median$1,86915.6%21.6%0.91×1.06×
33127 · Miami, FLMiami-Dade CountySouthBoth measures above median$2,95986.1%64.4%1.27×2.03×
78253 · San Antonio, TXBexar CountySouthObserved burden above median$1,57317.7%65.2%0.98×0.97×
27519 · Cary, NCWake CountySouthBoth measures below median$2,04014.8%26.4%0.91×1.05×
90017 · Los Angeles, CALos Angeles CountyWestBoth measures above median$2,65360.4%63.6%0.86×1.46×
94102 · San Francisco, CASan Francisco CountyWestAsking-rent share above median$3,48869.3%43.7%0.97×2.27×
98117 · Seattle, WAKing CountyWestBoth measures below median$2,40215.8%28.0%0.96×1.10×

Method, boundaries and reproducibility

Inclusion

A row must have an eligible ZIP profile and a current published ZIP article, plus direct Zillow ZIP rent, population, ACS income and burden, HUD two-bedroom FMR, ACS median gross rent and both precomputed benchmark ratios. No city, county or metro value fills a ZIP gap.

Pressure groups

The two splits use exact published-set medians: 26.6% for asking rent to income and 49.3% for observed burden. Values on a median enter the above-median half. Four groups partition every row once.

Time and geography

Asking rent ends 2026-06. Household evidence is ACS 2024 5-year. ACS uses ZCTAs, statistical approximations of ZIP delivery areas. Period and geography differences remain visible rather than being forced into false alignment.

Benchmark ratios

ZORI ÷ HUD 2BR FMR and ZORI ÷ ACS median gross rent remain separate. Neither ratio is an overpricing estimate, lease recommendation or prediction.

Not measured

The study does not observe concessions, bedroom mix, address-level condition, household size, utilities for every listing, signed leases, vacancy, tenant quality or future rent. A property decision requires current local comparables.

Rebuild

The CSV contains every displayed input, Census region, descriptive group, source periods and method version. Charts, examples and headline counts recompute from the same server dataset.