At the June 2026 Zillow endpoint, the ZIP-level ZORI is $1,916 per month, a 1.15% year-over-year increase. It is Zillow’s typical observed asking-rent index, blended across rental types rather than a reading of one leased unit or one bedroom size. The label 98225 functions both as Zillow’s ZIP market identifier and as the matching Census ZCTA used here. A ZCTA is a statistical area designed for Census tabulation; it is not identical to a USPS delivery ZIP. That identity match organizes the packet, but it does not collapse the distinct rental evidence into one measure. It supplies a current market signal, while the other sources answer different questions about occupied households, administrative standards, and resale activity.
Affordability is the central tension: the matched ZCTA’s ACS 2024 five-year median gross rent is $1,523, 25.8% below the Zillow index. ACS observes occupied renter homes and includes selected utilities; ZORI tracks asking rents, so the two values have different time, occupancy, and cost universes. The gap is not evidence that an available unit will lease at either figure. Applying the 30% income share to the annualized index produces $76,640 in required household income. Against the reported ZCTA median household income of $63,941, the index equals 36.0% of income. This required-income screen is arithmetic, not advice and not an applicant qualification rule.
The same ACS survey identifies 13,490 renter-occupied homes, of which 8,497 fall in the 30%-or-more rent-burden category, or 63.0% of renter households. This is a population-level survey burden measure and cannot establish the finances of a particular tenant or unit. The ZCTA has 24,205 housing units and a 6.58% vacancy rate; its stock includes 10,410 single-family units and 5,893 large-multifamily units. The table separately classifies vacant units for rent. These aggregate stock and vacancy facts do not show that any particular listing is open, habitable, or priced at an observed index.
Bedroom sizing needs a different interpretation. Scaling the ZIP ZORI by the local HUD bedroom ladder creates modelled monthly ZIP estimates: $1,562 for a studio, $1,595 for one bedroom, $1,916 for two bedrooms, $2,665 for three bedrooms, and $3,215 for four bedrooms. They are modelled estimates, never measured bedroom rents. The local HUD FMR/SAFMR two-bedroom standard is $1,794, making the ZIP index 6.8% higher. HUD’s ladder is an administrative, bedroom-specific standard, not asking rent; it supplies the scaling pattern rather than direct observations of units marketed in this ZIP.
History tempers the current reading. Exact same-month annualized rent change was 1.15% over one year, 2.38% over three years, and 5.31% over five years. The recent direction therefore confirms that the observed index remained higher, but it breaks from the longer path’s faster growth pace. Coverage is 100% across the available history, comprising 68 monthly observations. Annualized monthly-return variability of 2.55% limits the confidence a reader should place in one current rent snapshot. Separately, the maximum drawdown was 1.87%, documenting the largest historical decline from a prior peak. Transparent national discovery ranks among history-eligible ZIPs were 1,657 for momentum, 796 for stability, and 1,231 for balanced history; lower ranks are stronger. These are backward-looking measurements, not forecasts or investment recommendations.
For wider context, the Bellingham city context’s current rent is $1,976, while the Whatcom County context and the Bellingham, WA metro context each report $1,998. Those city, county, and metro figures are contextual benchmarks, not ZIP observations, and should remain separate from the Zillow index and ZCTA survey. They also use wider aggregates whose renter mix, stock mix, timing, and source construction may differ from the ZIP measures; the comparison is directional context, not a local rent estimate.
Redfin’s direct rolling-three-month ZIP resale observation presents a separate counterpoint. At its listed June 30, 2026 endpoint, median sold price was $625,139, down 8.43% year over year; 104 homes sold, and median marketing time was 13 days. Inventory stood at 112 homes, 9.62% higher than a year earlier, with 3.3 months of supply. The average sale-to-list ratio was 99.45%, and 43.6% of homes sold above list. All of those are direct ZIP for-sale signals, not rental transactions or rental comps. The resale-price decline challenges a simplistic conclusion drawn from the asking index’s modest annual gain and the income screen. The sold count and marketing time are direct resale-liquidity signals, not rental market activity.
Annualizing ZIP ZORI and dividing it by the Redfin median sold price gives a 3.68% cross-source screening ratio. It is not a cap rate, net return, expected return, or property yield. It does not translate direct resale evidence into property economics. Any property-level assessment would need the documented asking rent, bedroom count, lease-specific treatment of selected utilities, current availability and condition, and sale comparables matched for timing and property characteristics. Neither ZCTA vacancy nor the burden statistic proves availability or affordability for one unit. The unresolved question is whether such unit-specific documents support the general index, survey, and resale evidence without treating them as interchangeable.