ZIP Code 99031 — Spangle city, WA Demographics & Data

ZIP code 99031 covers Spangle, WA in Spokane County with a population of about 1,434.

At a glance, the area shows median age of 49.2 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 99031 is about $95,089 — about 27% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 15.6%; unemployment rate near 6.7%; 23.9% of adults with a bachelor’s degree or higher (about 9.8 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Construction, and Education; about 5.8% of workers reporting work-from-home (about 9.4 points below 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 $330,100 — about 5% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 88.6% (about 23.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 99031 in Spangle, WA, a household would need roughly $91,000 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 $2,120. That is roughly in line with the local median household income ($95,089). 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 Spangle city, WA as Relatively Moderate (composite score 90.0), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (96.6) and flood (91.6). 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 Spangle city, WA show little to no average snow and around 18.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 77 for ZIP 99031 (Spangle city, 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.