Iona Idaho ZIP Codes

Iona holds a single ZIP code.

Every ZIP code in Iona

The complete list of Iona, Idaho ZIP codes with the county each falls in.
ZIP code	County
83427	Bonneville County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Iona codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Iona. 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.

How these codes cluster

Every Iona 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 Iona accounts for 2% of it.

Every Idaho ZIP prefix and the region it covers →

Area codes covering Iona

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 Iona occupies.

Iona Idaho area codes in full →

Where Iona's ZIP codes sit

Each point is one Iona ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Iona

The closest places to Iona with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Ucon Idaho ZIP codes	4.7 mi	1 ZIP code
Idaho Falls Idaho ZIP codes	5.8 mi	7 ZIP codes
Rigby Idaho ZIP codes	10 mi	1 ZIP code
Ririe Idaho ZIP codes	11 mi	1 ZIP code
Lewisville Idaho ZIP codes	12 mi	1 ZIP code
Menan Idaho ZIP codes	14 mi	1 ZIP code
Shelley Idaho ZIP codes	14 mi	1 ZIP code
Roberts Idaho ZIP codes	17 mi	1 ZIP code

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