ZIP Code 84340 — South Willard CDP, UT Demographics & Data

ZIP code 84340 covers South Willard, UT in Box Elder County with a population of about 3,386.

At a glance, the area shows median age of 38.5 (near the U.S. median).

It sits in telephone area code 435; U.S. House district UT-1; the SALT LAKE CITY media market.

Median household income in ZIP 84340 is about $103,194 — about 37% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 2.9%; unemployment rate near 0.5%; 39.0% of adults with a bachelor’s degree or higher (about 5.3 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Education, and Public administration; about 22.8% of workers reporting work-from-home (about 7.6 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 $453,000 — about 30% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,298 (about 12% above the U.S. median rent ($1,163)), and owner-occupancy near 85.8% (about 20.4 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 84340 in South Willard, UT, a household would need roughly $125,000 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 $2,910. That is about 21% above the local median household income ($103,194), 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 South Willard CDP, UT as Relatively Low (composite score 55.9), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (95.4) and flood (19.5). 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 South Willard CDP, UT show little to no average snow and around 18.8 inches of annual precipitation.

IRS migration statistics show a net inflow of about 257 for ZIP 84340 (South Willard CDP, UT) 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.