For 20020, the five-digit label is both Zillow’s ZIP market identifier and its matched Census ZCTA; a ZCTA is a statistical area, not identical to a USPS delivery ZIP. At June 2026, Zillow ZORI is $2,182. It is a typical observed asking-rent index blended across rental types, not a lease-level quote. The ACS 2024 five-year matched-ZCTA median gross rent is $1,306, includes selected utilities, and describes occupied renter homes. The Zillow reading is 67.1% above the ACS figure, or 1.67 times it. That divergence frames the ZIP: these source universes answer different questions, so neither is a replacement for the other. The measures also differ in timing, occupancy basis, and utility treatment, so the difference is not a like-for-like price spread.
Measured through June 2026, the direct ZIP ZORI history has exact same-month annualized changes of 4.91% over one year, 5.76% over three years, and 5.72% over five years. The latest pace confirms, rather than breaks from, the longer upward path, but is slightly slower. Annualized volatility of monthly returns is 3.79%, maximum drawdown was -4.22%, and coverage is 98.9%. Transparent national discovery ranks among history-eligible ZIPs are 283 for momentum, 2,482 for stability, and 991 for the balanced measure, where lower ranks are higher. Ranks are discovery tools, not a separate rent measure. These backward-looking measurements are neither forecasts nor investment recommendations; the high variability and drawdown reduce the confidence warranted in one current snapshot.
Bedroom comparison points are modelled monthly estimates produced by scaling ZIP ZORI with the local HUD ladder: $1,901 for a studio, $1,954 for one bedroom, $2,182 for two, $2,758 for three, and $3,240 for four. They are modelled estimates, never measured bedroom rents. A difference between a modelled estimate and an advertised unit does not by itself make either figure wrong, because this is not a bedroom-listing sample. The HUD FMR/SAFMR ladder itself runs from $1,420 for a studio to $2,420 for four bedrooms. It is an administrative, bedroom-specific standard, not asking rent; its role here is to set relative bedroom spacing rather than report what listings ask.
The income tension is pronounced. The matched ZCTA’s ACS median household income is $54,032, while annualizing the $2,182 current index yields a 48.5% asking-rent-to-income screen. At a 30% screen, the same index arithmetically implies $87,280 in annual income. This is arithmetic only, not advice or an applicant qualification rule. The income comparison uses the matched-ZCTA median household figure, not verified renter income or an individual household’s resources. Separately, ACS estimates 16,015 renter households and 8,200 spending at least 30% of income on gross rent, a 51.2% burden share. Those survey results describe area households; they do not prove the affordability, utilities, or burden of any particular unit.
The same ACS ZCTA contains 26,059 housing units: 22,943 are occupied and 3,116 vacant, for a 12.0% overall vacancy rate. Renter-occupied homes number 16,015, or 69.8% of occupied units. The stock includes 9,062 single-family units and 3,370 large multifamily units. Among vacant units, 1,029 are for rent. This classification indicates an area-level count, not a guarantee that a unit is available now or evidence of its condition, rent, lease terms, or utility treatment. It does not show how long a vacancy has existed or whether it can be leased on comparable terms.
For wider-context comparison only, the Washington city rent context and District of Columbia county rent context are each $2,532; the Washington-Arlington-Alexandria, DC-VA-MD-WV metro rent context is $2,448. These scopes are broader than the ZIP and do not alter its direct reading. They locate the ZIP’s asking-rent index below all listed context values, yet cannot reconcile the ZIP index with the ACS gross-rent survey or supply a property-level price. City, county, and metro context are comparators, not local market evidence. They can provide scale, but their larger geographies cannot describe an individual ZIP listing.
Several limits remain before using this report for a listing comparison. Relevant property-level checks include the advertised rent, bedroom count, property type, availability date, lease length, and included utilities; the index blends rental types and the ACS figure includes selected utilities. Record the stated rent and any stated concessions separately. The address’s delivery geography matters because a ZCTA match alone is not a delivery-ZIP match. Any HUD standard in the comparison remains an administrative benchmark, not a claimed asking rent. The unresolved question is simple: does the specific home’s current offer actually match the scope of the comparison being made?