ZIP Code 98570 — Onalaska CDP, WA Demographics & Data

ZIP code 98570 covers Onalaska, WA in Lewis County with a population of about 5,060.

At a glance, the area shows median age of 40.8 versus a U.S. median of about 38.9.

It sits in telephone area codes 360, 564; U.S. House district WA-3; the SEATTLE - TACOMA media market.

Median household income in ZIP 98570 is about $65,682 — about 13% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 15.5%; unemployment rate near 6.1%; 16.8% of adults with a bachelor’s degree or higher (about 16.9 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Public administration, and Healthcare; about 23.0% of workers reporting work-from-home (about 7.8 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $352,000 — about even with the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $639 (about 45% below the U.S. median rent ($1,163)), and owner-occupancy near 72.2% (about 6.8 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 98570 in Onalaska, WA, a household would need roughly $97,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,261. That is about 48% above the local median household income ($65,682), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Onalaska CDP, WA as Relatively Moderate (composite score 89.7), which is elevated versus much of the country. The strongest component scores on US5 are flood (90.9) and wildfire (76.7). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Onalaska CDP, WA show little to no average snow and around 58.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 272 for ZIP 98570 (Onalaska CDP, WA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.