ZIP code 99323

ZIP 99323 is a small town in Walla Walla County, Washington, with 4,198 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #310 of 605 ranked by population — larger than 48% of them. The median age here is 32.4 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in ZIP 99323 earn a median of $86,597 a year, 10.3% 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 13.7% of residents here, above the 12.4% national rate.

The typical owner-occupied home in ZIP 99323 is valued at $358,600, 18.2% above the national figure, while median gross rent runs $1,088 a month, 22.6% below the national figure, or roughly $13,056 across a full year. A household on the local median income would put about 15.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.1×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 86.8% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

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.

ZIP 99323 is tabulated inside Walla Walla County, Washington, one of 8 ZIP areas the Census publishes for that county and 605 across Washington. Population sits in the small-town band, typically one main street plus the addresses that feed into it. 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 99323 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 99323 reports a median household income of $86,597, 13% above the $76,431 county median, and 7% above the $80,861 typical WA ZIP. Owner-occupied homes are valued at a median of $358,600, 14% above the county figure and 15% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,088 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 99323 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 99323 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.