ZIP Code 99121 — Danville CDP, WA Demographics & Data

ZIP code 99121 covers Danville, WA in Ferry County with a population of about 325.

At a glance, the area shows median age of 52.4 versus a U.S. median of about 38.9.

It sits in telephone area code 509; U.S. House district WA-5; the SPOKANE media market.

Median household income in ZIP 99121 is about $80,833 — about 8% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 10.2%; unemployment rate near 0.0%; 47.5% of adults with a bachelor’s degree or higher (about 13.8 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Education, Food services, and Construction; about 10.2% of workers reporting work-from-home (about 5.0 points below the U.S. share (15.2%)); a mean commute of about 115.0 minutes (U.S. average near 26.8).

Median home value is about $420,800 — about 21% above the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 81.3% (about 15.8 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 99121 in Danville, WA, a household would need roughly $116,000 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 $2,703. That is about 44% above the local median household income ($80,833), 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 Danville CDP, WA as Relatively Low (composite score 51.7), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (97.4) and flood (52.3). 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 Danville CDP, WA show little to no average snow and around 18.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 17 for ZIP 99121 (Danville 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.