ZIP 02141’s most consequential tension is a slow current rent move alongside a much faster resale-price move. The five-digit label is both a Zillow ZIP market identifier and a Census ZCTA match; a ZCTA is a statistical area and is not identical to a USPS delivery ZIP. Zillow’s June 2026 ZIP-level ZORI, a typical observed asking-rent index blended across rental types, is $3,676 monthly, up 1.5% from a year earlier. In contrast, the direct ZIP for-sale observation records a $929,790 median sold price, up 8.8% year over year. Annualized ZIP ZORI divided by that sold price is a 4.7% cross-source screening ratio only, not an estimate of property economics.
The asking-rent history points to a deceleration, not a reversal. Exact same-month annualized ZORI change was 1.5% over one year, 2.7% over three years and 5.4% over five years. Thus the latest positive reading continues the historical upward direction, yet breaks from the faster pace evident in the longer windows. The ZIP is classified high variability: changes across consecutive monthly observations produced 3.7% annualized monthly-return variability, while the separate maximum peak-to-trough drawdown was 13.2%. Coverage was 99.2%, indicating an almost uninterrupted history. This strengthens continuity of the record but does not eliminate movement in its level. These are backward-looking measurements, not forecasts or investment recommendations; variability and drawdown mean a single current ZORI snapshot has limited stand-alone precision.
The history discovery outputs reinforce this need for context rather than making a forward claim. Among history-eligible ZIPs, transparent national discovery ranks were 1,473 for momentum, 2,372 for stability and 2,158 for the balanced measure, with lower ranks representing higher placement. The weak stability placement aligns with the high-variability classification and supports less confidence in a one-month rent observation than a smoother series would warrant. These ranks summarize the provided historical mechanics; they neither measure asset quality nor establish a future rent path.
Three rent universes answer different questions. The matched ACS five-year ZCTA survey reports $2,915 median gross rent for occupied renter homes, including selected utilities; that is 26.1% below ZORI and cannot be treated as a current asking-rent comp. The local HUD FMR/SAFMR two-bedroom standard is $2,311, placing ZORI 59.1% above it; this administrative, bedroom-specific standard is not asking rent. Scaling ZIP ZORI by the local HUD ladder creates modelled, never measured, monthly estimates of $2,594 for a studio, $2,801 for one bedroom, $3,676 for two, $4,595 for three and $4,867 for four. They are a consistent estimation device, not observed bedroom-rent measurements.
Income and burden offer a separate affordability lens. The matched ZCTA median household income is $126,522; using a 30% of gross income screen, the arithmetic income associated with the current ZORI is $147,040 annually, and annualized asking rent equals 34.9% of that median. This is an arithmetic screen, not advice and not an applicant qualification rule. Separately, 39.7% of surveyed renter households reported gross-rent burdens at or above that threshold. That ACS burden measure describes households in the survey, not what any particular available unit costs, includes, or requires from a renter.
The housing survey establishes a renter-weighted stock backdrop, not a listing inventory. The ZCTA contains 8,266 housing units, including 3,743 units in large multifamily structures; its renter share is 74.5% and vacancy rate is 12.0%. A reported vacancy rate does not prove that a particular unit is rentable, available on a chosen date or offered on comparable terms. For wider context only, the Cambridge city-context Zillow rent is $3,598, the Middlesex County context rent is $3,260, and the Boston-Cambridge-Newton, MA-NH metro-context rent is $3,210. Those city, county and metro figures are not substitutes for the ZIP ZORI or evidence about a specific property.
Resale liquidity has to remain in the direct rolling-three-month ZIP for-sale universe. It counted 42 homes sold with a median 44 days on market, 51 homes of inventory and 3.6 months of supply. Average sale to list was 100.7%; 34.2% of sales were above list and 39.0% went off market within two weeks. Inventory rose year over year even as those sale-to-list signals and the price change cited above appeared firm. That combination, together with rent growth lagging the resale-price change, challenges any simple claim that rent and resale conditions move in lockstep. None of these are rental transactions or rental comparables.
Every result here is ZIP or ZCTA level and has a source-specific limit: ZORI blends asking rents across types, ACS is a multiyear survey with sampling uncertainty, HUD is an administrative standard, and Redfin tracks resales rather than leases. A property-level reading needs the advertised rent and date, bedroom count, unit type, lease term, utility treatment, current availability, and, for a sale comparison, property condition and list-versus-sale history. Check those attributes against the intended use before applying any ZIP benchmark. The unresolved decision question is whether a specific home’s terms actually resemble the datasets used here, rather than whether a broad ZIP statistic can stand in for it.