Postal reference / United States

83431Lewisville, Idaho

ZIP code 83431 is a United States postal code for Lewisville, Idaho. Its county association is Jefferson County. The map reference point is at 43.6725, -112.0189.

State / territory
Idaho
Recorded place name
Lewisville
County association
Jefferson
Estimated coordinate
43.6725, -112.0189
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ZIP prefix
834 · 46 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
12.533 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Browse the other 319 ZIP codes recorded for Idaho, sorted by code with place and county.

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Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
83434MenanIDJefferson4.1
83444RobertsIDJefferson5.7
83442RigbyIDJefferson5.9
83454UconIDBonneville6.3
83401Idaho FallsIDBonneville10.5
83427IonaIDBonneville11.0
83402Idaho FallsIDBonneville12.5
83404Idaho FallsIDBonneville13.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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