ZIP Codes of Duchesne County, UT

Population & People
Population & People
Total Population
23,339
Household Income
Household Income
Median Income
$77,113
Housing
Housing
Total Housing Units
10,126
Business & Economy
Business & Economy
Total Businesses
710
Employment
Employment
Employment Rate
57.42%
Education
Education
Bachelor's Degree+
17.37%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:12 ZIP Codes (12 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:435
Timezone:Mountain (GMT -07:00)
Local Time:2:14:05 PM
Population:23,339 [See All]
FIPS:49013
Land Area:2,498 sq mi
Water Area:12 sq mi
Coordinates:40.3353, -110.3708
Quick Link:
https://www.zip-codes.com/county/ut-duchesne.asp
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Wide geographic spread
ZIPs range from 761.1 sq mi down to 6.49 — a 117× sprawl ratio.

Standout ZIPs in this County


Most Populous
Roosevelt · 15,154 people
64.9% of county total
Highest Income
Mountain Home · $106,719 median
1.4× county average
Largest Land Area
Duchesne · 761.1 sq mi
Spans the most ground
Fastest Growth
Roosevelt · 32.6% (10-yr)
11,431 → 15,154 residents
Most Educated
Roosevelt · 17.7% bachelor's+
1,551 of 8,769 adults 25+

Things worth knowing about Duchesne County


23,339 residents live across 12 ZIPs covering 2,498 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 21,460 to 23,339 from 2014 to 2024 — a +8.8% change. 5 ZIPs gained residents, 7 lost.

The county's wealthiest ZIP 84051 (Mountain Home, $106,719 median) and poorest ZIP 84052 (Myton, $59,167) are 33.4 miles apart — a 1.8× income gap across local geography.

Median home values vary 1.9× across this county — from $222,500 in 84052 (Myton) to $425,000 in 84031 (Hanna).

Density varies 110× across the county — from 0 people/sq mi in 84031 (Hanna) to 41 in 84066 (Roosevelt).

Educational attainment ranges from 8.3% bachelor's+ in 84052 (Myton) to 38.2% in 84031 (Hanna) — the breadth of educational profiles across the area.

Within Utah, this is the #14 most populous of 29 counties and ranks #16 for median household income with the #19 fastest decade growth .

Weighted by population, the typical household earns about $77,931 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.4% of adults age 25+ hold a bachelor's degree or higher (2,444 of 14,070 reporting).

12 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Duchesne County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
2,498
square miles
Avg density
9.3
people per sq mi
Population
23,339
across 12 ZIPs
Duchesne
761.1 sq mi
3,069 residents
Hanna
397.0 sq mi
149 residents
Roosevelt
365.9 sq mi
15,154 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Roosevelt

All ZIP Codes in Duchesne County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
84066RooseveltStandard15,154$79,494365.932.6%
84021DuchesneStandard3,069$73,819761.1-19.4%
84052MytonStandard1,018$59,167265.7-21.9%
84001AltamontStandard735$81,09436.1-39.7%
84027FruitlandStandard683$75,556201.226.7%
84053NeolaStandard588$70,00025.8-42.1%
84072TabionaStandard539$74,911122.924.2%
84007BluebellStandard431$91,04238.0-26.9%
84002AltonahStandard388$83,125112.9113.2%
84051Mountain HomeStandard377$106,719165.3-14.3%
84073TalmageStandard208$59,3136.55.6%
84031HannaStandard149$71,111397.0-50.5%

Adjacent & Nearby Counties