Idaho Falls Idaho ZIP Codes

Idaho Falls holds 7 ZIP codes, all inside one county and one postal prefix.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Idaho Falls codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Idaho Falls. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Idaho Falls ZIP code begins 834. Those first three digits identify the sectional center facility that processes mail for this part of Idaho. Statewide that range covers 45 ZIP codes, so Idaho Falls accounts for 16% of it.

Every Idaho ZIP prefix and the region it covers →

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Idaho Falls occupies.

• 208 Area code 208
• 986 Area code 986

Idaho Falls Idaho area codes in full →

Straight-line distance between place reference points, not driving distance.