ZIP Code 99330 — Mesa city, WA Demographics & Data

ZIP code 99330 covers Mesa, WA in Franklin County with a population of about 1,104.

At a glance, the area shows median age of 32.3 versus a U.S. median of about 38.9.

It sits in telephone area code 509; U.S. House district WA-5; the YAKIMA - PASCO - RCHLND - KNNWCK media market.

Median household income in ZIP 99330 is about $135,648 — about 81% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 1.4%; unemployment rate near 0.0%; 15.6% of adults with a bachelor’s degree or higher (about 18.1 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Public administration, and Education; a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $292,100 — about 16% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 93.6% (about 28.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 99330 in Mesa, WA, a household would need roughly $80,000 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 $1,876. That sits below the local median household income ($135,648), suggesting the typical household income is closer to a workable buy-in level under these assumptions. 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 Mesa city, WA as Relatively Low (composite score 72.5), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (84.6) and flood (83.5). 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 Mesa city, WA show little to no average snow and around 9.8 inches of annual precipitation.

IRS migration statistics show a net inflow of about 59 for ZIP 99330 (Mesa 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.