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ZIP code · Duchesne · Utah · United States

ZIP code 84021 — Duchesne

ZIP code 84021 serves Duchesne, Utah.

Postal code
84021
Single source Value from one source, not cross-checked.
City
Duchesne
County
Duchesne
State
Utah
Country
United States
Coordinates
40.1633, -110.4029 — precision precise (locality)
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Population
3,127 (ZCTA, ACS 5-year)
Median household income
$72,050
Median age
37.2
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
435
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.

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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). Data generated on 2026-08-21. Methodology · Report an error on this page