In June 2026, Zillow’s ZIP-level ZORI for 29412 is $2,309 per month. It is a typical observed asking-rent index blended across rental types, rather than a record of signed leases or a bedroom-specific quote. The matched Census ZCTA’s ACS 2024 five-year median gross rent is $1,881. ACS is a survey of occupied renter homes, and its gross-rent measure includes selected utilities. A ZCTA is a statistical area and is not identical to a USPS delivery ZIP, making the match useful but not interchangeable. The asking index and the survey median consequently describe different rental universes; their gap should not be read as the rent of a particular home.
HUD’s FY2026 local bedroom ladder is a bedroom-specific administrative FMR/SAFMR standard, not asking rent. Scaling ZIP ZORI with that ladder produces modelled monthly estimates, in ascending bedroom order from studio through four bedrooms, of $2,016, $2,103, $2,309, $2,873, and $3,306. These are modelled estimates, never measured bedroom rents: HUD’s local bedroom relationships allocate a rental-type-blended ZIP asking-rent index. The ladder helps frame relative bedroom sizing, but it cannot establish an available unit’s condition, included utilities, concessions, or advertised price.
An arithmetic 30% required-income screen on the index produces $92,360 in annual income. The matched ZCTA’s ACS median household income is $101,509, placing the index-to-income screen at 27.3%. This is not affordability advice or an applicant qualification rule: it combines a mixed asking-rent index with a household-wide median income, not a renter-specific budget. Separately, ACS reports that 2,444 renter households, or 53.5%, spend 30% or more of income on gross rent. These measures may coexist without contradiction because renter outcomes are distributed, while gross rent includes selected utilities; neither measure proves the burden of a specific unit or household.
Backward-looking Zillow history through June 1, 2026 gives the rent path a mixed reading, not a forecast or investment case. The exact same-month increase is 4.22% over one year, versus annualized changes of 3.77% over three years and 7.85% over five years. Recent direction therefore confirms an upward move but breaks from the faster longer path. Annualized monthly-return variability measures 2.97%, which supports moderate rather than high confidence in one current index snapshot as a stable level. Separately, the maximum observed peak-to-trough drawdown was 2.48%, evidence of limited historical reversals rather than an absence of them. Coverage is 100%; transparent national discovery ranks among history-eligible ZIPs are 617 for momentum, 1,580 for stability, and 711 for balanced history. These ranks identify past patterns only.
Wider context makes the ZIP’s asking-rent level look higher, but does not substitute for ZIP evidence. The City of Charleston context rent is $2,245, Charleston County context rent is $2,156, and the Charleston–North Charleston, SC metro context rent is $2,066; each is a broader-scope context measure rather than a ZIP observation. Those named city, county, and metro values are useful benchmarks for the Zillow index only. They have different geographic composition from the ZIP and are not replacements for the matched ZCTA’s occupied-renter survey or HUD’s administrative standard. No context comparison establishes a local lease rate, household burden, or bedroom rent.
In the matched ZCTA, ACS records 18,413 housing units and 1,655 vacant units, a 9.0% vacancy rate. The stock is more heavily single-family than large multifamily, a composition point rather than a live inventory count. Vacancy is not proof that a particular dwelling is available, rentable, appropriately priced, or suitable for any household. Likewise, aggregate renter burden does not identify the terms of a current listing. The stock and vacancy evidence instead sets a limit on inference: survey counts can describe the area’s housing base, while current availability, lease terms, utility treatment, and unit condition require property-level evidence.
Direct Redfin rolling-three-month ZIP resale evidence is a separate for-sale universe. It records a $624,859 median sold price, a 1.6% year-over-year price change, 237 homes sold, and 61 median days on market. Inventory was 271 homes with 3.5 months of supply, while the average sale-to-list ratio was 98.0%. These are resale liquidity and pricing observations, not rental transactions, rental comparables, or property economics. Annualized ZIP ZORI divided by the median sold price is a 4.4% cross-source screening ratio only—not a cap rate, net return, expected return, or property yield. The recent rent increase is not mirrored by an equally rapid median resale-price rise, a tension that challenges any attempt to treat rent history and resale results as one market signal.
None of these sources resolves a property-level question by itself. Relevant checks are the actual advertised rent and lease date, verified bedroom count, address-to-ZIP assignment, included utilities and recurring fees, concessions, condition, occupancy or availability, and the specific sale/list record. The unit type must be matched with the rental types blended into ZORI, while any gross-rent comparison must be reconciled to its utility coverage. HUD remains an administrative benchmark, and the Redfin record remains tied to its ZIP resale window. ACS margins of error, survey timing, index construction, and source-geography mismatches limit precision. Does the particular address and lease offer fit these separate evidence definitions?