Altamont Utah ZIP Codes

Altamont holds a single ZIP code.

Every ZIP code in Altamont

The complete list of Altamont, Utah ZIP codes with the county each falls in.
ZIP code	County
84001	Duchesne 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Altamont codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Altamont. 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 Altamont ZIP code begins 840. Those first three digits identify the sectional center facility that processes mail for this part of Utah. Statewide that range covers 94 ZIP codes, so Altamont accounts for 1% of it.

Every Utah ZIP prefix and the region it covers →

Area codes covering Altamont

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

435 Area code 435

Altamont Utah area codes in full →

Where Altamont's ZIP codes sit

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

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

Cities near Altamont

The closest places to Altamont with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Duchesne Utah ZIP codes	14 mi	1 ZIP code
Myton Utah ZIP codes	17 mi	1 ZIP code
Roosevelt Utah ZIP codes	17 mi	1 ZIP code
Tabiona Utah ZIP codes	22 mi	1 ZIP code
Vernal Utah ZIP codes	40 mi	2 ZIP codes
Manila Utah ZIP codes	53 mi	1 ZIP code
Helper Utah ZIP codes	55 mi	1 ZIP code
Kamas Utah ZIP codes	56 mi	1 ZIP code

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