Skip to content
ZipNumbers
Grid of numbered green mailboxes in an apartment lobby, illustrating ZIP code listings

Kitsap County · Washington

ZIP code 98311

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 98311 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
27,947

ZCTA residents

Median income
$98,714

Household, past 12 months

Median home
$448,100

Owner-occupied value

Sales tax
6.5%

Washington state rate

Quick answer

ZIP 98311 sits in Kitsap County, Washington and is home to 27,947 people. Median household income is $98,714, the median home is worth $448,100 and median gross rent is $1,792. 75.2% of households own their home, and purchases are taxed at 6.5% (Washington state rate).

County
Kitsap County

FIPS 53035

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 98311

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

Population
27,947ZIP 98311 residents
Median household income
$98,714Past 12 months, inflation adjusted
Median home value
$448,100Owner-occupied units
Median gross rent
$1,792Rent plus utilities, monthly
Median age
37.1 yrsAll residents
Homeownership rate
75.2%Owner-occupied households

ZIP 98311 in context

How this area compares with national benchmarks.

ZIP 98311 is a small city in Kitsap County, Washington, with 27,947 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #116 of 605 ranked by population — larger than 80% of them. The median age here is 37.1 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 98311 earn a median of $98,714 a year, 25.7% above the national figure of $78,538. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 8.3% of residents here, below the 12.4% national rate.

The typical owner-occupied home in ZIP 98311 is valued at $448,100, 47.7% above the national figure, while median gross rent runs $1,792 a month, 27.5% above the national figure, or roughly $21,504 across a full year. A household on the local median income would put about 21.8% 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 4.5×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 75.2% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. 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 98311 in context

How 98311 sits inside Kitsap County and Washington.

ZIP 98311 is tabulated inside Kitsap County, Washington, one of 20 ZIP areas the Census publishes for that county and 605 across Washington. This is a mid-sized suburban ZIP inside a county that is split across many delivery areas. 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 98311 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 98311 reports a median household income of $98,714, close to the $98,025 county median, and 22% above the $80,861 typical WA ZIP. Owner-occupied homes are valued at a median of $448,100, 16% below the county figure and 6% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,792 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 98311 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 98311 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 98311

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
4.5×Home value ÷ household income
Est. mortgage
$2,325/mo20% down, 30-yr at 6.75%
Poverty rate
8.3%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 98311 compares

ZIP 98311 against the median ZIP in Kitsap County and across Washington.

MeasureZIP 98311County medianState medianvs state
Median household income$98,714$98,025$80,861+22%
Median home value$448,100$534,450$421,200+6%
Median gross rent$1,792$1,757$1,305+37%
Population27,9476,9024,632+503%

Medians are computed across the 20 ZIP areas in Kitsap County and the 605 ZIP areas in Washington.

Statewide rank

Where this ZIP places among all 605 Washington ZIP areas.

Income

richer than 72% of 556 state ZIPs

#157
Home value

above 56% of 548 state ZIPs

#240
Population

larger than 81% of 605 state ZIPs

#116

Comparable ZIP codes

Washington ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
98365Jefferson County$98,393$603,500$1,811
98355Lewis County$98,250$412,500—
99026Spokane County$98,125$477,300$1,110
98249Island County$99,583$585,700$1,648
98390Pierce County$97,815$471,500$1,886
98232Skagit County$99,728$714,000$1,588

Nearby ZIP codes

Other ZIP codes filed under Kitsap County.

Adjacent ZIP Codes

Other ZIP codes in Kitsap County, Washington.

ZIP 98311 questions

Common questions about this ZIP code.

Where is ZIP code 98311?
ZIP 98311 lies mostly in Kitsap 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 98311?
Washington charges 6.5% statewide, plus any county, city or district rate that applies locally.
Is 98311 expensive to live in?
Median rent runs $1,792 a month, about 22% of median household income, and the median home is worth $448,100 — +6% 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 98311, 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.