Four independent rent lenses

Why US rent benchmarks disagree across the same metro

How does Zillow's observed market rent compare with HUD one- and two-bedroom FMR, Census ACS gross rent and Realtor asking rent?

A metro can carry several legitimate rent figures because each source measures a different housing universe. This study keeps all four comparisons separate, shows their coverage and identifies where substituting one definition for another creates the largest distortion.

Complete metro set
696
direct ZORI, both HUD bedrooms and ACS
Median ZORI / HUD 2BR
1.1x
complete 696-metro overlap
Median ZORI / ACS
1.3x
current index versus five-year survey
Realtor numeric coverage
46 / 50
four report markets are source n/a
What four separate joins reveal

One metro can carry several legitimate rent numbers

The complete intersection contains 696 metros. Median Zillow ZORI is 1.4x the HUD one-bedroom FMR, 1.1x the HUD two-bedroom FMR and 1.3x ACS median gross rent. These ratios are separate pairwise comparisons. Their differences reflect bedroom scope, occupied-versus-advertised stock, utilities treatment and release timing—not four votes that should be averaged.

Realtor names 50 large markets in its report: 46 carry a numeric asking rent and 4 are source n/a. Across only those numeric overlaps, the median ZORI-to-Realtor ratio is 1.2x. The other 646 metros are outside that finite report; they are not missing values to be estimated.

A benchmark earns trust by answering a named question—not by agreeing with every other source.

The widest available proportional gap appears in Hailey, ID, where ZORI is 3.6x the HUD 1BR FMR, a monthly difference of $2,269. This is a substitution-risk flag, not an accuracy ranking. Open the benchmark-gap explorer to change lenses without changing the source definitions, then use ZIP-, bedroom- and property-level evidence for an actual deal.

Pairwise distributions, never a blended rent

How each benchmark sits relative to Zillow ZORI

Each row shows the 10th–90th percentile range, middle 50% and median for one independent overlap.

Distribution of Zillow ZORI relative to four rent benchmarksFour horizontal interval plots compare Zillow observed rent with HUD one-bedroom FMR, HUD two-bedroom FMR, Census ACS gross rent and Realtor asking rent. A ratio of one is parity. The Realtor row uses only its numeric report markets.0.80×0.98×1.17×1.35×1.53×1.72×1.90×PARITY · 1.00×HUD 1BR FMRn=6961.41×HUD 1BR FMR: 696 metros; median 1.41 times ZORI-to-benchmark ratio; middle 50 percent 1.27 to 1.60HUD 2BR FMRn=6961.14×HUD 2BR FMR: 696 metros; median 1.14 times ZORI-to-benchmark ratio; middle 50 percent 1.03 to 1.28ACS gross rentn=6961.30×ACS gross rent: 696 metros; median 1.30 times ZORI-to-benchmark ratio; middle 50 percent 1.19 to 1.45Realtor asking rentn=461.18×Realtor asking rent: 46 metros; median 1.18 times ZORI-to-benchmark ratio; middle 50 percent 1.13 to 1.22Zillow ZORI ÷ named benchmark →
The intervals summarize separate pairwise overlaps. Realtor uses 46 numeric markets; HUD and ACS use all 696 complete metros. The chart does not average the sources or label one universally correct.
Decision table

The first 24 rows, with a path to the underlying market

Largest proportional gaps between Zillow ZORI and any available independent rent benchmark
Gap rankMetroZillow ZORIHUD 1BRHUD 2BRACS gross rentRealtor askingWidest available gapOpen
1Hailey, IDZORI 2026-06-30$3,157$888$1,071$1,282outside reportHUD 1BR FMR3.56x · $2,269Open lens
2Jackson, WYZORI 2026-06-30$3,475$1,202$1,488$1,745outside reportHUD 1BR FMR2.89x · $2,274Open lens
3Kapaa, HIZORI 2026-06-30$5,102$1,777$2,332$1,870outside reportHUD 1BR FMR2.87x · $3,325Open lens
4Taos, NMZORI 2026-06-30$2,928$1,072$1,279$1,034outside reportACS gross rent2.83x · $1,894Open lens
5Albertville, ALZORI 2026-06-30$1,501$591$776$795outside reportHUD 1BR FMR2.54x · $910Open lens
6Albemarle, NCZORI 2026-06-30$1,775$705$925$861outside reportHUD 1BR FMR2.52x · $1,070Open lens
7Oxford, MSZORI 2026-06-30$2,108$863$1,043$1,025outside reportHUD 1BR FMR2.44x · $1,246Open lens
8Montrose, COZORI 2026-06-30$2,093$890$1,168$1,188outside reportHUD 1BR FMR2.35x · $1,203Open lens
9Steamboat Springs, COZORI 2026-06-30$3,199$1,366$1,593$1,568outside reportHUD 1BR FMR2.34x · $1,833Open lens
10Breckenridge, COZORI 2026-06-30$3,337$1,452$1,905$1,857outside reportHUD 1BR FMR2.30x · $1,885Open lens
11Boone, NCZORI 2026-06-30$2,175$988$1,177$1,127outside reportHUD 1BR FMR2.20x · $1,187Open lens
12Seneca, SCZORI 2026-06-30$1,550$717$941$881outside reportHUD 1BR FMR2.16x · $833Open lens
13Houghton, MIZORI 2026-06-30$1,769$825$973$835outside reportHUD 1BR FMR2.15x · $945Open lens
14Clewiston, FLZORI 2026-06-30$2,108$1,097$1,262$985outside reportACS gross rent2.14x · $1,123Open lens
15Sault Ste. Marie, MIZORI 2026-06-30$1,700$823$1,066$797outside reportACS gross rent2.13x · $903Open lens
16Gardnerville Ranchos, NVZORI 2026-06-30$2,618$1,228$1,567$1,592outside reportHUD 1BR FMR2.13x · $1,390Open lens
17Mount Pleasant, TXZORI 2026-06-30$1,641$778$973$872outside reportHUD 1BR FMR2.11x · $863Open lens
18Lewisburg, TNZORI 2026-06-30$1,672$793$1,041$946outside reportHUD 1BR FMR2.11x · $879Open lens
19Jacksonville, TXZORI 2026-06-30$1,580$756$984$933outside reportHUD 1BR FMR2.09x · $824Open lens
20Bend, ORZORI 2026-06-30$2,205$1,056$1,385$1,697outside reportHUD 1BR FMR2.09x · $1,149Open lens
21Marion, NCZORI 2026-06-30$1,648$790$925$806outside reportHUD 1BR FMR2.09x · $858Open lens
22Cookeville, TNZORI 2026-06-30$1,554$749$959$885outside reportHUD 1BR FMR2.07x · $805Open lens
23Cullman, ALZORI 2026-06-30$1,389$670$879$908outside reportHUD 1BR FMR2.07x · $719Open lens
24Sandpoint, IDZORI 2026-06-30$1,982$958$1,257$1,122outside reportHUD 1BR FMR2.07x · $1,024Open lens

The visible table is intentionally limited for reading. The CSV contains every row that passes the printed inclusion rule.

Reproduce the screen

Inclusion first, interpretation second.

Include every RentMarker metro with direct Zillow ZORI, HUD one-bedroom FMR, HUD two-bedroom FMR and ACS median gross rent observations. Attach Realtor asking rent only for the 50 named report markets and retain its four source NAs. Classify the existing ZORI/HUD 2BR relationship with the published 0.90–1.10 band, then rank by the largest absolute proportional gap between ZORI and any available comparison lens.

Methodology version: v13

Method

  1. For each source, the ratio divides current Zillow ZORI by that source's monthly benchmark; the dollar gap subtracts the benchmark from ZORI.
  2. Source distributions use the complete direct overlap for that pair: 696 metros for HUD and ACS, and only numeric Realtor report rows for Realtor.
  3. The ten-percent HUD 2BR bands are descriptive boundaries; no source is averaged, normalized into a consensus or declared universally correct.

Counter-signals

  • HUD FMR includes a tenant-paid utilities allowance and is bedroom-specific; ZORI is a smoothed market index across bedroom counts.
  • ACS gross rent is a five-year survey estimate for occupied units, while Realtor covers advertised studio, one- and two-bedroom listings in 50 named markets.
  • A wide gap can reflect bedroom mix, covered stock, timing or program design; it does not prove that one source is erroneous.

Limitations

  • These are metro-level observations and cannot replace property comps, a ZIP-level SAFMR, local housing-authority rules or a unit inspection.
  • Release periods and housing universes differ; the study deliberately does not force identical unit composition or timing.
  • Realtor coverage is a finite large-market report, so its 46 numeric overlaps must not be generalized to the other 650 metros.
Move from market to deal

Use the study to narrow the question—not to skip underwriting.

Open a market for its supply, affordability, migration and risk context. Compare a deliberate substitute, then bring a real property price, rent and expenses into the stress test.