ZIP 93101 is both a Zillow ZIP market identifier and a Census ZCTA match; a ZCTA is a statistical area, not the same thing as a USPS delivery ZIP. Zillow’s June 2026 ZORI is $3,319, a typical observed asking-rent index blended across rental types, and its same-month one-year change was 2.58%. The central screen is the separation between that current asking-rent measure and the direct ZIP resale median: Redfin recorded $1,537,403. Annualized ZIP ZORI divided by that resale price is 2.59%, a cross-source screening ratio only, rather than a statement about a property’s economics.
The historical rent path remained positive, but the current pace is slower than its longer record. Exact same-month Zillow ZORI growth annualized at 3.95% over three years and 6.01% over five years, so the latest one-year gain confirms an upward direction while breaking from the prior faster pace. The history has complete coverage across 121 monthly observations. Its monthly changes annualize to 3.97% variability, which places this ZIP in the high-variability history category and reduces confidence in treating one current index reading as a stable endpoint. Separately, the largest historical decline from a prior peak was 2.93%. Transparent national discovery ranks among history-eligible ZIPs were 908 for momentum, 2,575 for stability, and 1,782 for the balanced measure; these are backward-looking discovery tools, not forecasts or investment conclusions.
ACS and HUD answer different questions from Zillow. The matched Census ZCTA’s ACS 2024 five-year median gross rent was $2,250; it is a survey measure for occupied renter homes and includes selected utilities, rather than a current asking-rent observation. Zillow’s current index is therefore 47.5% above that ACS median, a difference that can reflect both timing and source universe rather than a contradiction. HUD’s FY 2026 two-bedroom standard is $3,124. HUD FMR or SAFMR is an administrative, bedroom-specific standard—not asking rent—yet the current ZIP index stands 6.24% above that two-bedroom benchmark.
The bedroom ladder should likewise be read as a model, not as observed bedroom-rent evidence. Scaling ZIP ZORI through the local HUD ladder produces modelled monthly estimates of $2,612 for a studio, $2,917 for a one-bedroom, $4,329 for a three-bedroom, and $4,937 for a four-bedroom. The modelled two-bedroom estimate tracks the current ZIP index by construction. These figures provide a consistent way to position bedroom sizes against the local HUD relationship, but they do not measure advertised or signed rents for any particular unit, building type, lease term, or utility package.
A 30% income screen converts the current asking-rent index into $132,760 of required annual household income. That arithmetic is not advice and is not an applicant qualification rule. The matched ZCTA’s median household income was $90,148, making the index-based asking-rent-to-income comparison 44.2%. ACS also reports that 57.8% of renter households paid at least 30% of income toward rent. This burden figure is a five-year survey result for occupied renter homes, not proof that a specific available unit is unaffordable or that every renter faces the same rent-to-income relationship.
The matched ZCTA had 13,698 housing units, including 975 vacant units, for a 7.12% vacancy rate, while renters occupied 77.1% of occupied homes. Of the vacant stock, 265 units were listed as for rent and 187 were seasonal, categories that do not establish current availability, condition, price, or suitability for a particular renter. For wider context only, Santa Barbara city’s asking-rent context measure was $3,966.77, Santa Barbara County’s context measure was $3,294, and the Santa Maria-Santa Barbara, CA metro context measure was also $3,294. Those broader geographies frame the ZIP reading but do not replace ZIP-level rental evidence.
Redfin provides a separate, direct rolling-three-month ZIP resale observation, not rental transactions. Its median sold price was $1,537,403, up 4.59% year over year; 43 homes sold with a median 52 days on market. Inventory was 45 homes and months of supply stood at 3.2. Sale-to-list signals were restrained rather than uniformly aggressive: the average sale closed at 97.78% of list price and 19.07% sold above list. This resale evidence creates a tension with the rental record: sale prices rose faster than the latest asking-rent index while rent growth decelerated from its longer-run pace. The 2.59% rent-price screen highlights that cross-source separation, but does not convert resale data into rental performance evidence.
The packet does not identify unit-level rent, utilities, concessions, building condition, bedroom count, property type, lease duration, or the relationship between a subject property and a ZIP-wide index. It also cannot determine whether vacant homes are rentable at the modelled ladder, whether an ACS respondent’s gross rent matches a current listing, or whether a Redfin sale resembles a rental candidate. A property-level review would need the current quoted asking rent, included utilities, concessions, exact bedroom count, lease terms, condition, and comparable nearby listings or sales before applying these ZIP screens. The unresolved question is whether the specific property’s terms resemble the broad asking-rent index rather than merely sharing the 93101 label.
","findings":[{"body":"The latest same-month Zillow asking-rent change was positive, yet it ran below the ZIP’s three-year and five-year annualized growth rates. That pattern supports a continuing upward historical direction while showing slower recent momentum. High monthly-return variability and a measurable historical drawdown mean that the current index is informative, but should not be treated as a frictionless or permanently stable rent level.","title":"Rent growth is positive but has slowed"},{"body":"Zillow ZORI and ACS median gross rent should not be used interchangeably. ZORI is a current ZIP-level asking-rent index across rental types, whereas ACS is a five-year survey of occupied renter homes that includes selected utilities. The sizable gap is decision-relevant because it places current-market screening above the experience reported by surveyed incumbent renters, without proving an error in either source.","title":"Current asking rent sits well above ACS gross rent"},{"body":"The matched ZCTA is renter-heavy, and ACS reports that a substantial majority of renter households crossed the 30% rent-burden threshold. Combined with the index-based income screen, this indicates a meaningful difference between the current asking-rent benchmark and median household income. It does not establish the finances, eligibility, or housing options of any named household or any specific available unit.","title":"Renter concentration and burden are material context"},{"body":"Redfin’s direct ZIP resale observation showed year-over-year median sold-price growth exceeding the latest asking-rent growth, even as average sales closed below list and only a minority sold above list. That mixed liquidity picture is for-sale evidence only. It challenges a simple reading of the rental trend, while the annualized-rent-to-price figure remains solely a cross-source screening ratio.","title":"Resale signals challenge the rent-growth pace"}],"risks":["Zillow’s ZIP index blends rental types and cannot verify the asking rent, utility treatment, concessions, lease duration, bedroom count, condition, or availability of a particular dwelling under review.","ACS figures are matched-ZCTA five-year survey estimates for occupied homes, not a live listing sample. Their timing, included utilities, survey uncertainty, and resident composition differ materially from current asking-rent evidence.","The high-variability rent history and prior drawdown indicate that one month’s index may not summarize the full path. Historical growth, ranks, and volatility are backward-looking measurements rather than forecasts.","Redfin’s price, inventory, and sale-to-list metrics describe direct ZIP resale activity only. They cannot be used as rental comparables, proof of rental demand, or evidence of the economics of a specific property."],"qa":[{"a":"No. Zillow ZORI is a ZIP-level typical observed asking-rent index blended across rental types. The two-bedroom amount in the ladder is a modelled estimate created by scaling ZORI with the local HUD bedroom relationship. It is not a measured sample of two-bedroom listings, leases, or signed rents.","q":"Does the Zillow figure represent a measured two-bedroom asking rent?"},{"a":"The two figures use different evidence universes. ACS median gross rent is a five-year survey estimate for occupied renter homes and includes selected utilities, while Zillow measures current observed asking rents. Different timing, renter tenure, utility treatment, and survey versus listing-based construction can create a gap without demonstrating that either source is incorrect.","q":"Why is ACS median gross rent lower than the Zillow asking-rent index?"},{"a":"It is an arithmetic screen: annualized current ZIP ZORI divided by 30% produces the household income amount associated with that threshold. It is not financial advice, a tenant-budget conclusion, a lender standard, or an applicant qualification rule. Actual affordability depends on the specific rent, lease structure, utilities, household income, and other circumstances not supplied here.","q":"What does the 30% required-income figure mean?"},{"a":"Use Redfin only to describe the ZIP’s rolling-three-month for-sale market: sold-price level and change, sales volume, marketing time, inventory, supply, and sale-to-list outcomes. Comparing annualized ZORI with the median sold price produces a cross-source screen, not a rental transaction measure or a statement about expected property-level results.","q":"How should the Redfin resale data be used alongside rent data?"}],"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 Small Area FMRs — ZIP rent 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