What to know about ZIP 84540
ZIP code 84540 covers Thompson Springs, UT in Grand County.
It sits in telephone area code 435; U.S. House district UT-3; the SALT LAKE CITY media market.
Thompson Springs CDP, UT
ZIP Code 84540 — Thompson Springs CDP, UT Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
Map, Quick Facts & Location
Quick Facts
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At a glance
Overview of ZIP Code 84540
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for Thompson Springs CDP, UT as Very Low (composite score 10.3), which is relatively lower than many U.S. communities. The strongest component scores on US5 are wildfire (58.6) and flood (25.4). 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 Thompson Springs CDP, UT show little to no average snow and around 14.7 inches of annual precipitation.
Nearby (from this ZIP)
Airport CNY (37.9 miles (60.9 km)) · Colorado Mesa University (48.6 miles (78.2 km)) · Arches National Park (36.9 miles (59.4 km)) · VA: Grand Junction Vet Center (46.2 miles (74.4 km))
Full lists and map pins are in the Infrastructure section below.