ZIP code · Idaho Falls · Idaho · United States

ZIP code 83402 — Idaho Falls

ZIP code 83402 serves Idaho Falls, Idaho.

Postal code
83402
Single source Value from one source, not cross-checked.
City
Idaho Falls
County
Bonneville FIPS 16019
State
Idaho
Country
United States
Coordinates
43.4934, -112.0578 — precision precise (locality)
View on OpenStreetMap
Population
29,683 (ZCTA, ACS 5-year)
Population density
174 / sq mi
Land area
171 sq mi (442.8 km²) (ZCTA, ACS 5-year)
Median household income
$72,064
Per-capita income
$32,681
Median age
33
Households
11,036
Housing units
11,983
Median home value
$301,400
Median gross rent
$904 / month
Congressional district
ID-2 (119th Congress)
USDA hardiness zone
5b (-15 to -10 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Boise (UTC−7 / UTC−6 DST)
Area codes
208, 986
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 87°F), coldest Jan (avg low 12°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F293447586776878675594330
Avg low °F121625313845494841312213
Precip in0.70.60.81.01.61.10.50.61.00.90.70.8

NOAA 1991–2020 climate normals from the nearest station: IDAHO FALLS FANNING FLD (1.7 mi) · NOAA NCEI

Places in ZIP 83402

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page