The five-digit label, 22191, is both Zillow’s ZIP market identifier and the matched Census ZCTA. A ZCTA is a statistical area and is not identical to a USPS delivery ZIP. The distinctive decision question is whether the current broad rent signal is a useful starting point for assessing a listing, while household affordability and actual availability must be tested separately. In June 2026, Zillow’s ZORI for this ZIP is $2,181 per month, down 1.46% from a year earlier. ZORI is a typical observed asking-rent index blended across rental types. It describes the ZIP market’s current asking-rent signal, not the quoted price, bedroom count, utilities, lease terms, condition, or availability of an individual home. The year-over-year movement is an index change, not a forecast or an explanation for any listing.
Resident income and burden provide a different decision lens before an asking rent is treated as affordable. In ACS 2024 five-year data for the matched ZCTA, median household income was $109,316. Applying the 30% required-income screen to the monthly ZIP index produces $87,240 annually. This screen is arithmetic—annualized monthly rent divided by the stated share—not advice, an applicant qualification rule, or evidence that a household can secure a lease. The ZCTA had 10,846 renter-occupied homes, accounting for 42.9% of occupied homes. Of renter households observed for the burden measure, 5,302, or 48.9%, paid at least that share of income toward gross rent. The burden statistic describes surveyed households; it cannot establish a particular household’s finances or a particular unit’s cost.
Direct comparison is informative only when the definitions stay separate. The ACS survey reports a $2,125 median gross rent, with a $37 margin of error; it covers occupied renter homes and gross rent includes selected utilities. This is not a contemporaneous asking-rent series or a count of vacant listings. By contrast, FY2026 HUD Fair Market Rent is an administrative, bedroom-specific standard, not asking rent. The HUD two-bedroom standard is $2,280. It may serve as a program benchmark and as the relative basis for a bedroom ladder, but it does not state what owners are asking or what a tenant pays. ZORI, ACS, and HUD therefore address current broad asking signals, surveyed occupied-home costs, and administrative standards, respectively.
Because ZORI itself is not bedroom-specific, the local HUD ladder supplies a proportional framework rather than a further set of observations. The modelled ZIP estimates are $1,894 for a studio, $1,961 for a one-bedroom, $2,181 for a two-bedroom, $2,755 for a three-bedroom, and $3,233 for a four-bedroom. Each figure scales the ZIP-wide ZORI using the relative local HUD ladder. The orderly rise with bedroom count reflects the model’s allocation of a blended index across configurations. These are modelled estimates, never measured bedroom rents: they do not observe advertised medians, completed leases, square footage, utility packages, or variations in property condition. A listing can depart from the estimate without contradicting the ZIP index.
Housing counts show the framework in which availability needs verification rather than an assumption of supply. The matched ZCTA contains 26,446 housing units: 25,284 are occupied and 1,162 are vacant, yielding a 4.4% vacancy rate. The reported vacant categories include 491 for rent, 122 for sale, and 17 seasonal. They do not identify active advertisements, a selected move date, lease readiness, or suitability for an individual household. Structure categories further include 16,103 single-family units and 4,265 units in large multifamily structures. This composition indicates the kinds of stock counted in the survey, while the vacancy categories only classify units at the survey level. Neither measure proves that a particular property is vacant, rentable, maintained, or accessible on the terms a renter needs.
Context becomes useful once its broader scope is kept visible. In the Woodbridge city context, the rent measure is $2,194.54; this is a city-scope figure, not a ZIP observation. In Prince William County context, rent is $2,282 and vacancy is 3.1%, both county-scope context rather than a reading of the matched ZCTA. In the Washington-Arlington-Alexandria, DC-VA-MD-WV metro context, rent is $2,448 and apartment vacancy is 6.8%; the metro figure also has an apartment-specific vacancy scope. The city value sits near the ZIP index, whereas county and metro values are higher, but different geographic coverage and rental universes prevent a direct substitution. These comparisons add scale, not a ranking, causal explanation, or forecast.
Important limits remain. ZORI is blended ZIP-level asking-rent evidence; ACS is a multiyear survey with reported margins of error; HUD is an administrative standard; and city, county, and metro context have wider geographic scopes. Sharing the ZIP/ZCTA label does not make their samples, time windows, or populations identical. For a property-specific decision, confirm the address is in the intended delivery ZIP, the advertised monthly rent and bedroom configuration, included utilities, availability date, lease duration, deposits, recurring charges, and any property-specific eligibility terms. Compare those facts with the relevant benchmark rather than treating an index, a survey median, a vacancy category, or a modelled bedroom estimate as a quote for that property. This check is necessary even where aggregate figures appear close.