State rent research · editorial review 2026-10-22

Average Rent in Washington: ZIP Benchmarks & Renewal Timing

The median of 231 tracked Washington ZIP rent indices is $2,026 per month for September 2026.

Equal weight per ZIP · all homes and bedrooms combined · derived from Zillow’s smoothed asking-rent indices; this ZIP series is not seasonally adjusted. This is not a provider-published statewide estimate, an average paid by tenants or a rent quote for a particular home.

Seattle’s lower apartment vacancy has not produced a straight-line quarterly rent gain. For a tenanted purchase, Washington’s increase limits and Seattle’s notice calendar can also separate an advertised market rent from the income a buyer can collect.

Historic Frances Skinner Edris Nurses Home building in Seattle
Seattle’s historic Frances Skinner Edris Nurses Home, photographed in January 2022. Building-vintage context only; the image does not verify current use, occupancy or a rent-control exemption.
Taken on 28 January 2022 · Joe Mabel · Original photograph · CC BY-SA 4.0. Resized and converted to WebP.

What the rent evidence changes for a rental decision

Value the existing lease first. Then verify the tenancy’s increase eligibility, notice service and effective date. In the Eastside and Spokane comparisons, test competing supply and owner costs instead of assuming that a lower statewide benchmark makes the same debt budget work.

Seattle apartments and continuing tenancies

A stronger occupancy reading does not make a market-rent reset collectible

Kidder Mathews’ Q3 2026 Seattle apartment table reports 6.6% vacancy, versus 6.8% in Q2, but asking rent eased from $2,053 to $2,041. Separately, Commerce publishes a 9.683% ceiling for covered tenancy increases in 2026 and 10% in 2027. RCW 59.18.700 bars covered increases in the first 12 months; Seattle requires 180 days’ notice for housing-cost increases.

The survey is an asking-rent comparison, not authority to change an occupied unit’s lease. A purchaser’s business plan can overstate its first year by applying a possible future increase to every month. Exemptions, prior increases, lease terms and local rules must be checked before even a below-ceiling increase is treated as collectible.

Decision. Underwrite the in-place rent until the actual lawful effective date. Obtain the tenancy start, all prior notices and proof of service. Document any claimed exemption under RCW 59.18.710, including certificate-of-occupancy timing where relevant. Do not infer eligibility from the building’s appearance or the seller’s pro forma.

What could change it. A properly documented exemption or an ended tenancy may change the ceiling analysis, but neither automatically erases notice or other duties. Conversely, a lawful increase can still be commercially unattractive if competing offers make retention less costly.

Records to obtain. Executed agreement, tenancy start, trailing increase history, certificate of occupancy, notices, service evidence and local compliance review.

Read the source reports
  • Kidder Mathews Seattle Multifamily Q3 2026 — Q3 2026, p. 1; publisher Seattle/CoStar apartment market; listed construction delivery dates are expectations, not guarantees; accessed October 22, 2026.
  • Washington Commerce annual rent-increase limits — Official published limits: 9.683% in calendar 2026; 10% in 2027 for covered RCW 59.18 tenancies; reviewed October 22, 2026; limits are not market forecasts.
  • RCW 59.18.700 and tenancy increase restrictions — Current statute reviewed October 22, 2026; first 12 months, annual ceiling and notice cross-references; vacancy reset distinguished from continuing tenancy.
  • RCW 59.18.710 exemptions — Current statutory categories reviewed October 22, 2026; includes qualifying first certificates of occupancy issued 12 or less years before notice; verify facts and notice obligations.
  • City of Seattle Renting in Seattle updates — Official city guidance reviewed October 22, 2026; 180-day housing-cost increase notice remains applicable in Seattle; other duties require property-specific review.

Redmond / Eastside and Seattle urban-core delivery pockets

A smaller regional pipeline can still leave a large project beside the subject

Kidder’s Q3 list identifies Overlake East in Overlake with 1,088 units expected in Q2 2027 and Aero1200 in Seattle’s Denny Triangle with 927 units expected in Q2 2027. Its completed-project table lists 217 units at Rove Redmond in September 2026. These are named project observations, not a census of every competitive unit.

Regional supply contraction does not remove a concentrated lease-up from a particular commuting or amenity catchment. Expected delivery and actual availability differ. Overlake and downtown Seattle are not interchangeable rental products, and Seattle city’s local notice rule should not be assigned to an Eastside address merely because it shares King County.

Decision. Map the subject’s real competitors, verify project status with current leasing materials and permits, and compare opening incentives for the actual unit type. Run a renewal budget with no assumed rent growth if those projects overlap the lease-expiration calendar.

What could change it. A delayed project, different unit mix or a tenant base that does not view it as a substitute can reduce exposure. Dated leasing evidence can show that a listed pipeline property has already been absorbed; the published expected date alone cannot.

Records to obtain. Project delivery evidence, live availability, incentives, floor plans, travel-time catchment and the subject’s renewal calendar.

Read the source reports
Aerial view of Bellevue Washington skyline
Bellevue in February 2020. This Eastside location context is distinct from Seattle city’s notice jurisdiction; the archival skyline does not show today’s apartment pipeline.
2020-02-02 · Quintin Soloviev · Original photograph · CC BY-SA 4.0. Resized and converted to WebP.

Spokane apartment operating budget

Lower nominal rents leave less room to absorb a fixed cost error

Cushman & Wakefield’s preliminary Q3 Spokane series shows 7.1% overall vacancy and $1,446 monthly asking rent. This survey of properties with more than 50 units is a separate universe from the current ZIP benchmark and the Seattle survey.

A smaller rent line does not proportionately shrink roofs, deductibles or other fixed bills. The consequence is budget arithmetic, not a claim that Spokane has higher actual costs or worse returns. Apply Washington’s covered-tenancy rules here, while checking Spokane’s own local requirements separately.

Decision. Obtain the subject’s tax bill, utilities and insurance terms before matching a debt payment to an advertised rent. Compare available cash after those verified costs; keep initial capital work outside recurring NOI. Do not import the Seattle illustration’s dollar expenses as a Spokane market estimate.

What could change it. A lower acquisition basis, sound systems or lower verified recurring bills can offset the smaller rent line. A different property type may also lease at a different level; receipts and quotes can reverse the screening conclusion.

Records to obtain. Collected-rent ledger, assessor record, meters and service contracts, insurance coverage/deductibles, capital inspection and loan terms.

Read the source reports
The lawful rent date changes the first-year income bridge

Hypothetical occupied Seattle apartment · 12 budget months · scheduled USD before 4% loss · 5% assumed increase, not the statutory maximum

  1. Months 1–6$2,200 / month6 × $2,200 = $13,200
  2. Months 7–12$2,310 / month6 × $2,310 = $13,860

$27,060 scheduled in this timing case

Start with the in-place lease → verify eligibility and notice → count the increase only from its supported effective date.

Accessible observations underlying the comparison
MeasureValueDefinition
No increase in the budget year26,40012 × $2,200 scheduled rent
Increase effective after six budget months27,0606 × $2,200 + 6 × $2,310; eligibility and notice must already support that effective date
Incorrectly crediting the increase from month one27,72012 × $2,310; $660 above the six-month effective-date case

The six-month split is a budget assumption, not a conversion of 180 days into six calendar months or an individualized notice calculation. Verify actual service, lease and statutory dates. The timing case collects $633.60 less after a uniform 4% loss than a full-year increase. At fixed costs that difference also reduces cash by $633.60; a ceiling never guarantees that any increase is collectible.

Read the source reports

Compare rents across these county groups

These analyst-selected sets use the listed county labels and the same September 2026 observation month. Each ZIP receives one equal vote. They are not official metro definitions, exhaustive regions or bedroom comparisons.

27 distinct county labels appear in the current sample; geographic coverage is incomplete and uneven. Only currently available observations from the same latest month enter these comparisons. Older retained records and missing ZIPs do not enter as zero rents.

Derived county-label comparisons · monthly USD
Comparison and exact membershipZIP medianZIP count
Seattle / Eastside · King County
King
$2,32071
Tacoma area · Pierce County
Pierce
$2,05434
Everett area · Snohomish County
Snohomish
$2,26121
Spokane County
Spokane
$1,60321
Tri-Cities county set
Benton, Franklin
$1,7257
Vancouver area · Clark County
Clark
$1,93015

Compare supported postal-city groups

City links require at least three current ZIP observations. Postal city labels are not legal municipal boundaries. Groups are ordered by coverage, then name; this is not an affordability ranking.

21 matching cities

Same-month postal-city groups · equal ZIP weights · September 2026
Postal cityZIP median / monthZIP mean / monthZIP count
Seattle$2,273$2,25422
Spokane$1,559$1,58911
Tacoma$1,752$1,87911
Vancouver$1,783$1,87311
Bellevue$2,932$3,1385
Olympia$1,983$2,0415
Puyallup$2,040$2,2365
Renton$2,314$2,2795
Show 13 more city groups
Same-month postal-city groups · equal ZIP weights · September 2026
Postal cityZIP median / monthZIP mean / monthZIP count
Bremerton$1,883$1,8874
Burien$1,818$1,8394
Everett$1,920$1,9604
Spokane Valley$1,629$1,5934
Yakima$1,378$1,4084
Auburn$2,085$2,2193
Bellingham$2,024$1,9933
Bothell$2,609$2,6553
Kennewick$1,829$1,7933
Kent$1,936$1,9413
Lynnwood$2,164$2,1213
Mount Vernon$2,313$2,2683
Shoreline$2,169$2,4053

Find a ZIP rent observation

The table preserves each source ZIP, date and supplied county label. A ZIP can cross county or municipal boundaries; verify the actual address separately. No bedroom multiplier is applied.

231 matching ZIPs

Zillow ZIP observations and supplied geography labels
ZIPPostal cityCounty labelIndex / monthObservation
98001AuburnKing County$2,707September 2026
98002AuburnKing County$1,865September 2026
98003Federal WayKing County$1,894September 2026
98004BellevueKing County$2,932September 2026
98005BellevueKing County$2,601September 2026
98006BellevueKing County$3,757September 2026
98007BellevueKing County$2,381September 2026
98008BellevueKing County$4,019September 2026
98010Black DiamondKing County$2,998September 2026
98011BothellKing County$2,221September 2026
Show 221 more ZIP observations
Zillow ZIP observations and supplied geography labels
ZIPPostal cityCounty labelIndex / monthObservation
98012BothellSnohomish County$2,609September 2026
98019DuvallKing County$4,007September 2026
98020EdmondsSnohomish County$2,261September 2026
98021BothellSnohomish County$3,134September 2026
98022EnumclawKing County$2,034September 2026
98023Federal WayKing County$2,024September 2026
98026EdmondsSnohomish County$2,464September 2026
98027IssaquahKing County$2,770September 2026
98028KenmoreKing County$2,612September 2026
98029IssaquahKing County$3,048September 2026
98030KentKing County$1,936September 2026
98031KentKing County$1,935September 2026
98032KentKing County$1,951September 2026
98033KirklandKing County$2,762September 2026
98034KirklandKing County$2,520September 2026
98036LynnwoodSnohomish County$2,013September 2026
98037LynnwoodSnohomish County$2,187September 2026
98038Maple ValleyKing County$2,972September 2026
98040Mercer IslandKing County$2,796September 2026
98042CovingtonKing County$2,532September 2026
98043Mountlake TerraceSnohomish County$2,112September 2026
98045North BendKing County$2,958September 2026
98047PacificKing County$1,926September 2026
98052RedmondKing County$2,563September 2026
98053RedmondKing County$3,306September 2026
98055RentonKing County$2,202September 2026
98056RentonKing County$2,314September 2026
98057RentonKing County$2,175September 2026
98058RentonKing County$2,362September 2026
98059RentonKing County$2,344September 2026
98065SnoqualmieKing County$3,312September 2026
98072WoodinvilleKing County$2,517September 2026
98074SammamishKing County$3,381September 2026
98075SammamishKing County$3,562September 2026
98077WoodinvilleKing County$4,850September 2026
98087LynnwoodSnohomish County$2,164September 2026
98092AuburnKing County$2,085September 2026
98101SeattleKing County$2,647September 2026
98102SeattleKing County$1,958September 2026
98103SeattleKing County$2,291September 2026
98104SeattleKing County$2,041September 2026
98105SeattleKing County$1,970September 2026
98106SeattleKing County$2,403September 2026
98107SeattleKing County$2,332September 2026
98108SeattleKing County$2,226September 2026
98109SeattleKing County$2,564September 2026
98110Bainbridge IslandKitsap County$2,989September 2026
98112SeattleKing County$2,320September 2026
98115SeattleKing County$2,255September 2026
98116SeattleKing County$2,301September 2026
98117SeattleKing County$2,443September 2026
98118SeattleKing County$1,983September 2026
98119SeattleKing County$2,026September 2026
98121SeattleKing County$2,757September 2026
98122SeattleKing County$2,032September 2026
98125SeattleKing County$1,914September 2026
98126SeattleKing County$2,045September 2026
98133ShorelineKing County$1,904September 2026
98136SeattleKing County$2,423September 2026
98144SeattleKing County$1,946September 2026
98146BurienKing County$1,839September 2026
98148BurienKing County$1,796September 2026
98155ShorelineKing County$2,169September 2026
98166BurienKing County$1,776September 2026
98168BurienKing County$1,943September 2026
98177ShorelineKing County$3,143September 2026
98178Bryn Mawr-SkywayKing County$2,109September 2026
98188SeatacKing County$1,889September 2026
98198Des MoinesKing County$2,068September 2026
98199SeattleKing County$2,719September 2026
98201EverettSnohomish County$1,811September 2026
98203EverettSnohomish County$2,187September 2026
98204EverettSnohomish County$1,840September 2026
98208EverettSnohomish County$2,000September 2026
98221AnacortesSkagit County$2,550September 2026
98223ArlingtonSnohomish County$2,104September 2026
98225BellinghamWhatcom County$1,776September 2026
98226BellinghamWhatcom County$2,024September 2026
98229BellinghamWhatcom County$2,178September 2026
98230BlaineWhatcom County$2,443September 2026
98233BurlingtonSkagit County$2,059September 2026
98248FerndaleWhatcom County$2,110September 2026
98258Lake StevensSnohomish County$2,982September 2026
98264LyndenWhatcom County$1,971September 2026
98270MarysvilleSnohomish County$2,731September 2026
98271MarysvilleSnohomish County$2,333September 2026
98272MonroeSnohomish County$2,382September 2026
98273Mount VernonSkagit County$2,313September 2026
98274Mount VernonSkagit County$2,532September 2026
98275MukilteoSnohomish County$2,355September 2026
98277Oak HarborIsland County$1,967September 2026
98284Mount VernonSkagit County$1,959September 2026
98290SnohomishSnohomish County$2,305September 2026
98292StanwoodSnohomish County$2,133September 2026
98296SnohomishSnohomish County$3,482September 2026
98310BremertonKitsap County$1,801September 2026
98311BremertonKitsap County$1,965September 2026
98312BremertonKitsap County$2,011September 2026
98327DupontPierce County$2,627September 2026
98332Gig HarborPierce County$2,628September 2026
98335Gig HarborPierce County$2,707September 2026
98337BremertonKitsap County$1,769September 2026
98338GrahamPierce County$2,562September 2026
98354MiltonPierce County$2,152September 2026
98360OrtingPierce County$2,960September 2026
98362Port AngelesClallam County$1,963September 2026
98366Port OrchardKitsap County$1,965September 2026
98367Port OrchardKitsap County$2,235September 2026
98368Port TownsendJefferson County$2,450September 2026
98370PoulsboKitsap County$2,420September 2026
98371PuyallupPierce County$1,954September 2026
98372PuyallupPierce County$2,040September 2026
98373PuyallupPierce County$1,890September 2026
98374PuyallupPierce County$2,364September 2026
98375PuyallupPierce County$2,931September 2026
98382SequimClallam County$2,313September 2026
98383SilverdaleKitsap County$2,072September 2026
98387SpanawayPierce County$2,708September 2026
98388SteilacoomPierce County$1,805September 2026
98390SumnerPierce County$2,223September 2026
98391Bonney LakePierce County$2,609September 2026
98402TacomaPierce County$1,752September 2026
98403TacomaPierce County$1,658September 2026
98404TacomaPierce County$1,900September 2026
98405TacomaPierce County$1,653September 2026
98406TacomaPierce County$2,343September 2026
98407TacomaPierce County$2,153September 2026
98408TacomaPierce County$1,581September 2026
98409TacomaPierce County$1,652September 2026
98418TacomaPierce County$1,704September 2026
98422TacomaPierce County$2,206September 2026
98424FifePierce County$1,800September 2026
98444ParklandPierce County$1,577September 2026
98445Clover CreekPierce County$2,073September 2026
98446Clover CreekPierce County$2,074September 2026
98465TacomaPierce County$2,067September 2026
98466University PlacePierce County$2,022September 2026
98467University PlacePierce County$1,702September 2026
98498LakewoodPierce County$1,811September 2026
98499LakewoodPierce County$1,691September 2026
98501OlympiaThurston County$1,900September 2026
98502OlympiaThurston County$1,953September 2026
98503LaceyThurston County$2,004September 2026
98506OlympiaThurston County$2,038September 2026
98512OlympiaThurston County$1,983September 2026
98513OlympiaThurston County$2,329September 2026
98516LaceyThurston County$2,100September 2026
98520AberdeenGrays Harbor County$1,370September 2026
98528BelfairMason County$1,916September 2026
98531CentraliaLewis County$1,414September 2026
98532ChehalisLewis County$1,511September 2026
98550HoquiamGrays Harbor County$1,519September 2026
98563MontesanoGrays Harbor County$1,478September 2026
98569Ocean ShoresGrays Harbor County$1,473September 2026
98584SheltonMason County$1,795September 2026
98597YelmThurston County$2,364September 2026
98604Battle GroundClark County$2,163September 2026
98607CamasClark County$2,221September 2026
98620GoldendaleKlickitat County$1,283September 2026
98626KelsoCowlitz County$1,473September 2026
98631Long BeachPacific County$1,300September 2026
98632LongviewCowlitz County$1,289September 2026
98642RidgefieldClark County$2,384September 2026
98660VancouverClark County$1,964September 2026
98661VancouverClark County$1,668September 2026
98662VancouverClark County$1,808September 2026
98663VancouverClark County$1,688September 2026
98664VancouverClark County$1,682September 2026
98665VancouverClark County$1,768September 2026
98671WashougalClark County$1,930September 2026
98672White SalmonKlickitat County$2,300September 2026
98682VancouverClark County$1,698September 2026
98683VancouverClark County$1,783September 2026
98684VancouverClark County$1,994September 2026
98685VancouverClark County$2,468September 2026
98686VancouverClark County$2,083September 2026
98801WenatcheeChelan County$1,679September 2026
98802East WenatcheeDouglas County$2,179September 2026
98816ChelanChelan County$1,688September 2026
98823EphrataGrant County$1,411September 2026
98826LeavenworthChelan County$1,719September 2026
98837Moses LakeGrant County$1,446September 2026
98848QuincyGrant County$1,930September 2026
98901YakimaYakima County$1,088September 2026
98902YakimaYakima County$1,174September 2026
98903YakimaYakima County$1,582September 2026
98908YakimaYakima County$1,786September 2026
98922Cle ElumKittitas County$2,688September 2026
98926EllensburgKittitas County$1,481September 2026
98942SelahYakima County$1,652September 2026
99001Airway HeightsSpokane County$1,698September 2026
99004CheneySpokane County$1,345September 2026
99005ColbertSpokane County$1,868September 2026
99006Deer ParkSpokane County$2,008September 2026
99016Spokane ValleySpokane County$1,658September 2026
99019Liberty LakeSpokane County$1,772September 2026
99022Medical LakeSpokane County$1,544September 2026
99037Spokane ValleySpokane County$1,603September 2026
99163PullmanWhitman County$1,454September 2026
99201SpokaneSpokane County$1,121September 2026
99202SpokaneSpokane County$1,559September 2026
99203SpokaneSpokane County$2,204September 2026
99204SpokaneSpokane County$1,206September 2026
99205SpokaneSpokane County$1,712September 2026
99206Spokane ValleySpokane County$1,654September 2026
99207SpokaneSpokane County$1,439September 2026
99208SpokaneSpokane County$1,655September 2026
99216Spokane ValleySpokane County$1,457September 2026
99217SpokaneSpokane County$1,456September 2026
99218SpokaneSpokane County$1,512September 2026
99223SpokaneSpokane County$2,024September 2026
99224SpokaneSpokane County$1,592September 2026
99301PascoFranklin County$1,707September 2026
99324College PlaceWalla Walla County$1,286September 2026
99336KennewickBenton County$1,518September 2026
99337KennewickBenton County$2,032September 2026
99338KennewickBenton County$1,829September 2026
99352RichlandBenton County$1,725September 2026
99353West RichlandBenton County$2,026September 2026
99354RichlandBenton County$1,633September 2026
99362Walla WallaWalla Walla County$1,556September 2026

Seattle illustration: keep unverified future increases out of the reference cash

The editable reference assumes an in-place $2,200 rent, 4% combined vacancy/collection loss, $8,500 annual recurring expenses, $14,400 debt and $1,500 reserves per apartment. All amounts and loss assumptions are hypothetical. It produces $25,344 collected income, $16,844 NOI and $944 cash after debt and reserves.

Initial calculated result: $25,344 collected rent, $16,844 NOI before debt/reserves, and $944 cash after debt/reserves. Change the assumptions below to test your own budget.

Illustration · one apartment · first 12 months · USD. Editable assumptions, not observed market averages or an acquisition recommendation. All recurring amounts are allocated per apartment. No appreciation, sale proceeds or tax benefits are assumed.

Actual lawful face rent; no automatic ZIP-index adoption.
Economic rent loss over the year, before incentives.
First-year equivalent; not added again to vacancy.
Include taxes, insurance, management, repairs and owner-paid utilities.
Allocated principal and interest; excluded from NOI.
Cash set aside below NOI; initial work requires separate cash.

Annual cash after operating costs, debt and reserve contribution

$944

This is a positive illustration margin, before initial capital work, income tax and sale costs.

Follow the rent into owner cashDerived from your inputs · dollars per apartment per year
Scheduled rent
$26,400
− Vacancy / noncollection
-$1,056
− Occupied-share concession
-$0
= Effective rental income
$25,344
− Operating expenses
-$8,500
= NOI before debt / reserves
$16,844
− Debt service
-$14,400
− Reserve contribution
-$1,500
= Annual cash margin
$944

NOI excludes debt service and this worksheet’s reserve contribution. Initial renovation, acquisition costs and initial downtime are outside this annual operating illustration. Do not subtract the same vacancy, incentive or repair expense twice.

At what occupancy does the cost budget stop working?Annual cash margin; concession, rent, debt and reserves stay as entered

On a narrow screen, scroll the table sideways to compare all three expense budgets.

Collected occupancyEntered expensesExpenses +10%Expenses +20%
95%$680Cash remaining-$170Cash deficit-$1,020Cash deficit
90%-$640Cash deficit-$1,490Cash deficit-$2,340Cash deficit
85%-$1,960Cash deficit-$2,810Cash deficit-$3,660Cash deficit

Occupancy here is the collected share of scheduled rent before incentives, not a count of occupied doors. At the entered costs, break-even collected occupancy is 92.4%. Debt-service coverage is 1.17× NOI / debt service; it excludes reserve contributions.

For the figure’s verified six-month 5% increase case, enter the blended annual-equivalent monthly rent of $2,255: cash is $1,577.60. That is not a lease quote. Entering $2,310 for all 12 months instead gives $2,211.20 and overstates this timing case by $633.60. If no increase is eligible during the budget year, keep $2,200. This model does not determine legal eligibility, service deadlines or local relocation duties.

Use the full property cash-flow calculator for the purchase price, financing terms and holding period. Review its expense and reserve conventions before transferring assumptions; this illustration does not automatically populate a deal.

Washington rent questions

Is the Washington ZIP benchmark a one-bedroom rent?

No. It combines all homes and bedroom counts in the Zillow ZIP series. Use a dated matched-unit competitive set for a one-bedroom or house, rather than assigning a bedroom label to this benchmark.

Can I apply the annual ceiling to every occupied unit?

No. First-year restrictions, exemption facts, prior increases, lease terms, notices and local duties matter. Commerce’s published ceiling is neither a market forecast nor a legal eligibility determination for your tenancy.

Does Seattle’s 180-day rule cover every King County address?

The cited Seattle rule is a city requirement. Verify the property’s municipality and its current local rules alongside state law; a county postal label does not establish jurisdiction.

How these rent figures are calculated

State: Washington · USPS WA · Census state FIPS 53. Zillow supplies postal ZIP observations with city and county labels. We filter to valid positive rents in this state and the latest common observation month, sort the values, and take the middle value, or the mean of the two middle values for an even count. Means are the sum divided by included ZIPs. No population, household or rental-unit weighting is added.

The all-home, all-bedroom ZIP series is smoothed, not seasonally adjusted. A bedroom rent cannot be inferred from it. Membership can change after a refresh, so a change in this page’s median is not a matched-sample rent-growth rate. This edition does not publish a ZIP-sample growth claim.

Data: Zillow Research · ZORI method · National ZIP source CSV. The state benchmark is our ZIP-based calculation, not a provider-published statewide estimate. Occupied-unit Census rent, listing medians, effective broker rents and HUD gross-rent references answer different questions and are not blended here.

The observation month identifies the rent data available for this comparison. Historical or missing latest observations stay out of the current sample. Check the date before comparing a property with a newly advertised offer.

Market and legal sources below were reviewed 2026-10-22. Their own periods are shown next to each claim. Broker samples and boundaries are not fully disclosed; surveys may share underlying providers and should not be treated as independent experiments. The market interpretation is conditional research, not a property-level income guarantee. Recheck local rules, signed comparable leases and actual expenses before using an illustration in a transaction.

Read the source reports
  • Kidder Mathews Seattle Multifamily Q3 2026 — Q3 2026, p. 1; publisher Seattle/CoStar apartment market; listed construction delivery dates are expectations, not guarantees; accessed October 22, 2026.
  • Washington Commerce annual rent-increase limits — Official published limits: 9.683% in calendar 2026; 10% in 2027 for covered RCW 59.18 tenancies; reviewed October 22, 2026; limits are not market forecasts.
  • RCW 59.18.700 and tenancy increase restrictions — Current statute reviewed October 22, 2026; first 12 months, annual ceiling and notice cross-references; vacancy reset distinguished from continuing tenancy.
  • RCW 59.18.710 exemptions — Current statutory categories reviewed October 22, 2026; includes qualifying first certificates of occupancy issued 12 or less years before notice; verify facts and notice obligations.
  • City of Seattle Renting in Seattle updates — Official city guidance reviewed October 22, 2026; 180-day housing-cost increase notice remains applicable in Seattle; other duties require property-specific review.
  • Cushman & Wakefield U.S. Multifamily MarketBeat Q3 2026 — Q3 2026 preliminary; same-edition Q2 comparisons; pp. 4–5, method p. 7; CoStar properties with more than 50 units in publisher metros; unit-weighted asking rents, overall physical vacancy; accessed October 22, 2026.