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King County · Washington

ZIP code 98034

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 98034 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
51,836

ZCTA residents

Median income
$128,974

Household, past 12 months

Median home
$875,200

Owner-occupied value

Sales tax
6.5%

Washington state rate

Quick answer

ZIP 98034 sits in King County, Washington and is home to 51,836 people. Median household income is $128,974, the median home is worth $875,200 and median gross rent is $2,324. 60.6% of households own their home, and purchases are taxed at 6.5% (Washington state rate).

County
King County

FIPS 53033

State
Washington (WA)

605 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 98034

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
51,836ZIP 98034 residents
Median household income
$128,974Past 12 months, inflation adjusted
Median home value
$875,200Owner-occupied units
Median gross rent
$2,324Rent plus utilities, monthly
Median age
37.3 yrsAll residents
Homeownership rate
60.6%Owner-occupied households

ZIP 98034 in context

How this area compares with national benchmarks.

ZIP 98034 is a small city in King County, Washington, with 51,836 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #15 of 605 ranked by population — larger than 97% of them. The median age here is 37.3 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in ZIP 98034 earn a median of $128,974 a year, 64.2% above the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 5.9% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in ZIP 98034 is valued at $875,200, 188.5% above the national figure, while median gross rent runs $2,324 a month, 65.3% above the national figure, or roughly $27,888 across a full year. A household on the local median income would put about 21.6% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 6.8×, against roughly 3.9× nationally, so buying is out of reach on local earnings alone and the ownership market leans on outside income, equity or dual high earners. 60.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

Home values sit at 6.8× median household income, far past the 3.9× national mark, so ownership costs here are set by something other than local wages — second homes, retirees with equity, or commuters earning elsewhere.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Reading ZIP 98034 in context

How 98034 sits inside King County and Washington.

ZIP 98034 is tabulated inside King County, Washington, one of 86 ZIP areas the Census publishes for that county and 605 across Washington. This is a dense urban ZIP, where a single postal boundary can hold more residents than an entire rural county. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 98034 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 98034 reports a median household income of $128,974, close to the $127,093 county median, and 60% above the $80,861 typical WA ZIP. Owner-occupied homes are valued at a median of $875,200, 9% above the county figure and 108% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $2,324 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Washington charges 6.5% statewide, and local governments overlapping 98034 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 98034 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 98034

What a purchase inside this ZIP costs at checkout.

Rate applied
6.5%State base rate only
Tax on $100
$7Rounded to the dollar
Tax on $1,000
$65Before any exemptions

Washington levies 6.5% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
22%Median rent ÷ median income
Price-to-income
6.8×Home value ÷ household income
Est. mortgage
$4,541/mo20% down, 30-yr at 6.75%
Poverty rate
5.9%Residents below poverty line

A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.

How 98034 compares

ZIP 98034 against the median ZIP in King County and across Washington.

MeasureZIP 98034County medianState medianvs state
Median household income$128,974$127,093$80,861+60%
Median home value$875,200$803,200$421,200+108%
Median gross rent$2,324$2,015$1,305+78%
Population51,83626,4874,632+1019%

Medians are computed across the 86 ZIP areas in King County and the 605 ZIP areas in Washington.

Statewide rank

Where this ZIP places among all 605 Washington ZIP areas.

Income

richer than 90% of 556 state ZIPs

#53
Home value

above 93% of 548 state ZIPs

#41
Population

larger than 98% of 605 state ZIPs

#15

Comparable ZIP codes

Washington ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
98391Pierce County$129,233$578,300$2,178
98290Snohomish County$129,656$717,600$1,591
98101King County$128,143$741,400$2,476
98335Pierce County$130,304$736,400$1,971
98011King County$127,445$888,000$2,223
98116King County$130,504$917,000$2,033

Nearby ZIP codes

Other ZIP codes filed under King County.

Adjacent ZIP Codes

Other ZIP codes in King County, Washington.

ZIP 98034 questions

Common questions about this ZIP code.

Where is ZIP code 98034?
ZIP 98034 lies mostly in King County, Washington. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
What sales tax do I pay in 98034?
Washington charges 6.5% statewide, plus any county, city or district rate that applies locally.
Is 98034 expensive to live in?
Median rent runs $2,324 a month, about 22% of median household income, and the median home is worth $875,200 — +108% against the typical Washington ZIP.
Is a ZCTA the same as a postal ZIP code?
Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 98034, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.