ZIP code · Midvale · Idaho · United States

ZIP code 83645 — Midvale

ZIP code 83645 serves Midvale, Idaho.

Postal code
83645
Single source Value from one source, not cross-checked.
City
Midvale
County
Washington FIPS 16087
State
Idaho
Country
United States
Coordinates
44.4420, -116.7038 — precision precise (locality)
View on OpenStreetMap
Population
887 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
416.9 sq mi (1,079.9 km²) (ZCTA, ACS 5-year)
Median household income
$73,333
Per-capita income
$31,687
Median age
48.4
Households
330
Housing units
377
Median home value
$296,500
Median gross rent
$800 / month
Congressional district
ID-1 (119th Congress)
USDA hardiness zone
6a (-10 to -5 °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 code
208
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 93°F), coldest Jan (avg low 17°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303751627280939280634432
Avg low °F172129354249565444342619
Precip in3.22.42.31.61.81.30.40.30.61.32.43.9

NOAA 1991–2020 climate normals from the nearest station: CAMBRIDGE (9.2 mi) · NOAA NCEI

Places in ZIP 83645

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