What to know about ZIP 89831
ZIP code 89831 covers Mountain City, NV in Elko County with a population of about 26.
It sits in telephone area code 775; U.S. House district NV-2; the SALT LAKE CITY media market.
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
ZIP 89831 is tagged as a military / base community. Loading DoD locality rates… Rates are a planning reference — confirm with finance or the official DTMO BAH lookup.
ZIP code 89831 covers Mountain City, NV in Elko County with a population of about 26.
It sits in telephone area code 775; U.S. House district NV-2; the SALT LAKE CITY media market.
Mountain City, NV reads as a military / base-oriented community on US5’s intent model (elevated veteran share (50.0%) and/or base-related place names). Service members and families often look up Basic Allowance for Housing (BAH) rates, on-base mail (PSC / P.O. Box) addresses, and nearby ZIP demographics when relocating.
US5 shows 2026 DoD BAH locality rates for this ZIP’s Military Housing Area on this page (pay grade × with/without dependents). Treat the table as a planning reference and confirm entitlement with your finance office or the official DTMO BAH lookup.
On socioeconomic markers, US5 shows a poverty rate of 0.0%; unemployment rate near 0.0%.
Labor and commute patterns include leading industry context around Agriculture; a mean commute of about 13.0 minutes (U.S. average near 26.8).
Housing tenure and rents show owner-occupancy near 100.0% (about 34.6 points above the national owner-occupancy rate (65.4%)).
FEMA’s National Risk Index rates natural-hazard risk for Mountain City CDP, NV as Relatively Moderate (composite score 87.9), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (99.9) and flood (54.5). 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 Mountain City CDP, NV show little to no average snow and around 12.8 inches of annual precipitation.
IRS migration statistics show a net inflow of about 1 for ZIP 89831 (Mountain City CDP, NV) 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.
Airport EKO (63.6 miles (102.3 km)) · Great Basin College (62.7 miles (100.9 km)) · Hagerman Fossil Beds National Monument (94.8 miles (152.6 km)) · VA: Elko Outreach Clinic (63.0 miles (101.4 km))
Full lists and map pins are in the Infrastructure section below.