The immediate tension in five-digit 03102 is between two legitimate but non-interchangeable rent views. In the reported Zillow month, Zillow ZORI places the ZIP’s typical observed asking-rent index, blended across rental types, at $2,040 monthly. The matched ACS 2024 five-year ZCTA reports a $1,626 median gross rent, making the asking index 25.5% higher. This 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. ACS describes occupied renter homes and includes selected utilities, not current marketed units, so the gap is not a price-change measure. Against the ZIP index, Manchester city context is $2,057.68, while Hillsborough County context and Manchester-Nashua, NH metro context are both $2,156; every one of those is wider context only.
The direct ZIP Zillow history makes the slowdown-versus-growth tension clearer rather than resolving it. At the June 2026 endpoint, the exact same-month asking-rent change was 2.3% over one year, compared with annualized same-month gains of 3.1% over three years and 6.2% over five years. Recent direction therefore confirms the longer positive path but is slower than both longer measurements. These are backward-looking measurements, not forecasts or investment recommendations. Coverage is 100% across 65 monthly observations. Annualized variability of monthly returns was 2.7%, and maximum drawdown was -1.3%; that combination supports more confidence in the broad historical pattern than in a lone current rent snapshot, without eliminating listing-level variation. Transparent national discovery ranks were 1,156 for momentum, 1,081 for stability, and 890 for balanced history, where a lower rank is higher among history-eligible ZIPs.
Bedroom figures should be read as a proportional model, not a measured rent survey. FY 2026 HUD FMR/SAFMR is a bedroom-specific administrative standard, not asking rent, and its local two-bedroom standard is $2,127. Scaling ZIP ZORI using the local HUD ladder produces modelled monthly estimates of $1,407 for a studio, $1,605 for one bedroom, $2,040 for two bedrooms, $2,707 for three bedrooms, and $2,878 for four bedrooms. They are modelled estimates, not measured bedroom rents: they inherit the blended ZORI benchmark and HUD’s bedroom relationships rather than establishing achieved rents, advertised rents, or the rent of a particular apartment. The two-bedroom model equals the ZIP index by construction and is 4.1% below the HUD two-bedroom standard. That difference compares distinct tools, not evidence that either source is wrong.
Income and burden add a different, survey-based constraint. In the matched ACS ZCTA, median household income was $74,327; putting the $2,040 monthly asking index beside that income yields an asking-rent-to-income screen of 32.9%. At a 30% screen, the arithmetic annual income associated with that monthly index is $81,600. This is not advice and not an applicant qualification rule: it does not account for household composition, utilities, credits, debts, or an individual lease. ACS also counted 4,259 of 8,634 renter households as spending at least the screen threshold on gross rent, or 49.3%. The burdened-count margin of error was 623 households. That aggregate burden measure cannot prove how affordable a particular unit is, especially because gross rent and asking rent have different scope.
Stock data show why a ZIP-wide index and any unit search must remain distinct. The ZCTA held 15,294 housing units, with 14,625 occupied and 669 vacant, a 4.4% vacancy rate. Renter-occupied homes numbered 8,634, or 59.0% of occupied homes. The stock included 4,695 single-family units and 4,242 units in large multifamily structures. These counts do not say which vacant homes are immediately marketable, their asking prices, their bedroom mix, or whether a vacancy matches a household’s terms. They are a broad inventory and tenure picture, not proof of supply or availability for any particular listing. Likewise, renter concentration helps describe the ZCTA’s occupied stock but does not identify the tenure, price, or condition of a specific property.
The comparison set frames relative level, not a common market transaction. Manchester city, Hillsborough County, and the Manchester-Nashua metro cover wider geographies than the ZIP, and their context rents should not be substituted for a local advertised amount. Nor should the ZIP ZORI be treated as a median lease payment: it is a typical observed asking-rent index across rental types. ACS is a multi-year survey of occupied renter homes, while HUD has an administrative purpose and bedroom-specific design. Different timing, utility treatment, occupancy filters, and geographies mean the sources can diverge without contradiction. The historical variability measure helps describe confidence in past observations, but it cannot tell a reader what the next listing, renewal, or market period will be.
A property-level comparison begins with the advertised monthly rent and identifies whether the unit is a studio or the relevant bedroom count before using the modelled ladder as a reference. Check the unit’s address and ZIP assignment, property type, lease term, included utilities, recurring fees, concessions and their expiration, deposit requirements, availability date, and whether the quoted price is actually current. Compare those lease-specific items with the distinction between a gross-rent survey measure and an asking-rent index rather than treating either ZIP value as a quotation. The historical series describes where observed asking rent has been, not where it must go. The practical closing question is: does the specific unit’s all-in recurring cost and configuration match the comparison being made?
","findings":[{"body":"Zillow’s June asking-rent index for 03102 is $2,040, while the matched ACS ZCTA’s median gross rent is $1,626. The difference is meaningful for framing current listings, but not as a trend calculation: ZORI blends observed asking rents across rental types, whereas ACS is a five-year survey of occupied renter homes and includes selected utilities. The ZCTA is statistical, not a USPS delivery ZIP.","title":"Asking index exceeds the survey gross-rent measure"},{"body":"Exact same-month growth remained positive at 2.3% over one year, but trailed the 3.1% and 6.2% annualized rates measured over three and five years. Full coverage and a shallow -1.3% maximum drawdown help describe a relatively steady past series. They do not provide a forecast, guarantee a renewal outcome, or determine the asking rent of an available unit.","title":"Positive history has decelerated from longer-run rates"},{"body":"The local HUD bedroom ladder scales the ZIP index into modelled estimates from $1,407 for a studio to $2,878 for four bedrooms. HUD FMR/SAFMR is an administrative, bedroom-specific standard rather than a rent observation. As a result, the ladder supports a consistent comparison across bedroom counts but cannot substitute for measured asking or signed rents at a property.","title":"The bedroom ladder is modelled, not observed"},{"body":"Renter households account for 59.0% of occupied homes in the matched ZCTA, and 49.3% of renter households were counted as spending at least 30% of income on gross rent. Vacancy and burden figures are aggregate categories, not evidence that a particular apartment is available or unaffordable. Lease terms, utility charges, and unit condition still require listing-specific review.","title":"Renter-heavy occupied stock has substantial aggregate burden"}],"risks":["The ZIP label matches a Census ZCTA for this analysis, but ZCTAs are statistical areas rather than USPS delivery ZIPs; address-level coverage and listing assignment can differ.","The bedroom figures are modelled by applying a HUD ladder to a blended ZIP asking-rent index, so actual unit rents may differ because of type, condition, utilities, fees, and lease terms.","ACS results summarize a multi-year survey of occupied renter homes and have sampling uncertainty; they should not be read as a contemporaneous list of advertised rents or household-level outcomes.","Vacant-unit categories do not establish immediate availability, bedroom fit, market-ready condition, lease eligibility, or total recurring cost, and historical ZORI changes cannot forecast an individual listing or renewal."],"qa":[{"a":"They describe different universes. Zillow ZORI is a ZIP-level typical observed asking-rent index blended across rental types, while ACS median gross rent is a five-year survey statistic for occupied renter homes that includes selected utilities. The matched ZCTA is statistical geography, not necessarily the same boundary used for USPS delivery or an individual listing.","q":"Why is the ACS rent lower than the Zillow index?"},{"a":"No. They are modelled monthly estimates created by scaling the ZIP ZORI with the local HUD FMR/SAFMR bedroom ladder. HUD is a bedroom-specific administrative standard, not asking rent. The figures provide a proportional reference only and cannot verify a marketed price, a signed lease, concessions, or utility treatment for a property.","q":"Are the bedroom values observed local rents?"},{"a":"It converts the current ZIP asking-rent index into the annual income associated with a 30% rent-to-income arithmetic screen. It is not financial advice, a recommended budget, a lending standard, or an applicant qualification rule. Actual housing costs can vary with utilities, fees, household size, debts, credits, and lease structure.","q":"What does the required-income screen mean?"},{"a":"The Zillow history measures past asking-rent movement at the ZIP level, including its direction, variability, and drawdown; it does not forecast future rents. Vacancy and housing-stock counts describe aggregate categories in the matched ZCTA. Before comparing a property, verify the current advertised amount, bedroom count, utilities, fees, lease term, availability, and address assignment.","q":"How should history and vacancy data be used?"}],"sources":[{"key":"apartment_list_time_on_market","name":"Apartment List Time on Market — listing liquidity","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/category/data-rent-estimates"},{"key":"apartment_list_vacancy","name":"Apartment List Vacancy Index — rental vacancy","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/apartment-list-vacancy-index-methodology"},{"key":"census_zcta_facts","name":"Census ACS five-year — ZCTA housing and income","release":"ACS 2024 5-year ZCTA","pulledAt":"2026-08-08","url":"https://api.census.gov/data/2024/acs/acs5.html"},{"key":"hud_zip","name":"HUD USPS crosswalk and Small Area FMRs — ZIP rent fallback","release":"ZIP-CBSA 2025Q4 + SAFMR FY2026","pulledAt":"2026-07-26","url":"https://www.huduser.gov/portal/datasets/usps_crosswalk.html"},{"key":"realtor_county","name":"Realtor.com Economic Research — county listing inventory","release":"county inventory 2026-06","pulledAt":"2026-07-28","url":"https://www.realtor.com/research/data/"},{"key":"redfin","name":"Redfin Data Center — inventory, days on market, and price cuts","release":"metro tracker through 2026-05-01","pulledAt":"2026-07-26","url":"https://www.redfin.com/news/data-center/"},{"key":"redfin_zip","name":"Redfin Data Center — ZIP resale activity and supply","release":"ZIP rolling 3 months through 2026-06-30; updated 2026-07-03","pulledAt":"2026-08-12","url":"https://www.redfin.com/news/data-center/"},{"key":"zillow_county","name":"Zillow ZHVI and ZORI — county values and rents","release":"county ZHVI/ZORI 2026-06","pulledAt":"2026-07-26","url":"https://www.zillow.com/research/data/"},{"key":"zillow_zori","name":"Zillow ZORI — metro market rents","release":"Metro_zori_uc_sfrcondomfr_sm_sa_month.csv","pulledAt":"2026-07-26","url":"https://www.zillow.com/research/data/"},{"key":"zillow_zori_city","name":"Zillow ZORI — city market rents","release":"zillow_zori_city.csv","pulledAt":"2026-07-29","url":"https://www.zillow.com/research/data/"},{"key":"zillow_zori_zip","name":"Zillow ZORI — ZIP market rents","release":"ZORI ZIP 2026-06","pulledAt":"2026-08-08","url":"https://www.zillow.com/research/data/"}],"history":[{"period":"2021-02-01","rent":1461.981965},{"period":"2021-03-01","rent":1468.592126},{"period":"2021-04-01","rent":1475.863826},{"period":"2021-05-01","rent":1481.032142},{"period":"2021-06-01","rent":1511.74809},{"period":"2021-07-01","rent":1549.122397},{"period":"2021-08-01","rent":1593.616734},{"period":"2021-09-01","rent":1621.750162},{"period":"2021-10-01","rent":1648.804825},{"period":"2021-11-01","rent":1670.110564},{"period":"2021-12-01","rent":1674.042247},{"period":"2022-01-01","rent":1661.994027},{"period":"2022-02-01","rent":1651.831298},{"period":"2022-03-01","rent":1669.723462},{"period":"2022-04-01","rent":1692.92791},{"period":"2022-05-01","rent":1722.006703},{"period":"2022-06-01","rent":1731.305235},{"period":"2022-07-01","rent":1743.796848},{"period":"2022-08-01","rent":1742.498658},{"period":"2022-09-01","rent":1747.617552},{"period":"2022-10-01","rent":1756.672296},{"period":"2022-11-01","rent":1752.991886},{"period":"2022-12-01","rent":1768.341156},{"period":"2023-01-01","rent":1801.506111},{"period":"2023-02-01","rent":1836.215663},{"period":"2023-03-01","rent":1855.007272},{"period":"2023-04-01","rent":1853.214759},{"period":"2023-05-01","rent":1860.045397},{"period":"2023-06-01","rent":1862.569182},{"period":"2023-07-01","rent":1864.893894},{"period":"2023-08-01","rent":1863.828238},{"period":"2023-09-01","rent":1873.214693},{"period":"2023-10-01","rent":1862.106071},{"period":"2023-11-01","rent":1882.302508},{"period":"2023-12-01","rent":1863.358331},{"period":"2024-01-01","rent":1884.75319},{"period":"2024-02-01","rent":1879.71047},{"period":"2024-03-01","rent":1896.58608},{"period":"2024-04-01","rent":1897.449973},{"period":"2024-05-01","rent":1904.664872},{"period":"2024-06-01","rent":1920.940312},{"period":"2024-07-01","rent":1936.922027},{"period":"2024-08-01","rent":1944.671001},{"period":"2024-09-01","rent":1957.183407},{"period":"2024-10-01","rent":1954.958404},{"period":"2024-11-01","rent":1968.162739},{"period":"2024-12-01","rent":1966.75101},{"period":"2025-01-01","rent":1959.617952},{"period":"2025-02-01","rent":1957.958307},{"period":"2025-03-01","rent":1972.830523},{"period":"2025-04-01","rent":1987.583347},{"period":"2025-05-01","rent":1994.923936},{"period":"2025-06-01","rent":1994.180888},{"period":"2025-07-01","rent":1994.71458},{"period":"2025-08-01","rent":2005.294028},{"period":"2025-09-01","rent":2005.420486},{"period":"2025-10-01","rent":2025.397932},{"period":"2025-11-01","rent":2019.931709},{"period":"2025-12-01","rent":2041.082628},{"period":"2026-01-01","rent":2042.468312},{"period":"2026-02-01","rent":2052.105298},{"period":"2026-03-01","rent":2039.484836},{"period":"2026-04-01","rent":2038.679118},{"period":"2026-05-01","rent":2037.976398},{"period":"2026-06-01","rent":2040.013012}],"historySummary":{"pointCount":65,"firstPeriod":"2021-02-01","latestPeriod":"2026-06-01","coverageMonths":65,"coverageRatio":1,"changes":{"1":{"years":1,"startPeriod":"2025-06-01","endPeriod":"2026-06-01","startRent":1994.180888,"endRent":2040.013012,"change":0.022982932128070788,"cagr":0.022982932128070788},"3":{"years":3,"startPeriod":"2023-06-01","endPeriod":"2026-06-01","startRent":1862.569182,"endRent":2040.013012,"change":0.09526831632071953,"cagr":0.03079785992371331},"5":{"years":5,"startPeriod":"2021-06-01","endPeriod":"2026-06-01","startRent":1511.74809,"endRent":2040.013012,"change":0.34943978133288045,"cagr":0.06177061481470836}},"maxDrawdown":-0.01326785452386492,"annualizedVolatility":0.027149308925394768,"consecutiveReturnCount":64}}