Duchesne County Demographics

A map of Duchesne County's Population by Race

Duchesne County, Utah has an estimated population of 20,185, an increase from the 19,596 recorded in the 2020 Census. The population is 84.8% White, 7.5% Hispanic, 4.1% Native American/Other, 3.0% Multiracial, 0.5% Asian, and 0.1% Black. This demographic dot map shows the population of Duchesne County, with one dot drawn for each person counted by the Census, color-coded by race.

Duchesne has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Utah overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Duchesne County, that probability was 26.3% in 2020 and 27.3% in the most recent ACS estimates.

Duchesne County is ranked the 16th most populous county in Utah, out of 29 counties. Duchesne County was ranked the 16th most populous county in the 2020 Census.

Duchesne County's White Population

17,115 residents of Duchesne County, or 84.8% of the population, identify as White. The share of White residents in Duchesne County is considerably higher than in Utah overall, where 74.7% of the population is White. Duchesne County ranks 12th statewide in terms of White residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's White population has grown by an estimated 2.3%. White residents' share of Duchesne County's population has decreased from 85.4% to 84.8%.

Duchesne County is more White than neighboring Carbon County (81.9% White), Wasatch County (80.6% White), Summit County (82.9% White), and Uintah County (80% White). Duchesne County is less White than neighboring Uinta County (85.8% White).

Duchesne County's Black Population

29 residents of Duchesne County, or 0.1% of the population, identify as Black. The share of Black residents in Duchesne County is comparable to the share in Utah overall, where 1.1% of the population is Black. Duchesne County ranks 22nd statewide in terms of Black residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's Black population has grown by an estimated 38.1%. Black residents' share of Duchesne County's population has remained roughly unchanged at 0.1%.

Duchesne County is less Black than neighboring Carbon County (0.6% Black), Wasatch County (0.2% Black), Summit County (0.3% Black), Uintah County (0.5% Black), and Uinta County (0.6% Black).

Duchesne County's Asian Population

97 residents of Duchesne County, or 0.5% of the population, identify as Asian. The share of Asian residents in Duchesne County is comparable to the share in Utah overall, where 2.4% of the population is Asian. Duchesne County ranks 23rd statewide in terms of Asian residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's Asian population has grown by an estimated 61.7%. Asian residents' share of Duchesne County's population has remained roughly unchanged at 0.5%.

Duchesne County is more Asian than neighboring Carbon County (0.2% Asian), and Uinta County (0.2% Asian). Duchesne County is less Asian than neighboring Wasatch County (1% Asian), Summit County (1.8% Asian), and Uintah County (0.8% Asian).

Duchesne County's Hispanic Population

1,509 residents of Duchesne County, or 7.5% of the population, identify as Hispanic. The share of Hispanic residents in Duchesne County is lower than in Utah overall, where 15.9% of the population is Hispanic. Duchesne County ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's Hispanic population has grown by an estimated 17.4%. Hispanic residents' share of Duchesne County's population has increased from 6.6% to 7.5%.

Duchesne County is less Hispanic than neighboring Carbon County (13.3% Hispanic), Wasatch County (14.7% Hispanic), Summit County (11.4% Hispanic), Uintah County (8.8% Hispanic), and Uinta County (10.1% Hispanic).

Duchesne County's Native American/Other Population

822 residents of Duchesne County, or 4.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Duchesne County is slightly higher than in Utah overall, where 1.9% of the population is Native American/Other. Duchesne County ranks 3rd statewide in terms of Native American/Other residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's Native American/Other population has declined by an estimated 14.5%. Native American/Other residents' share of Duchesne County's population has decreased from 4.9% to 4.1%.

Duchesne County is more Native American/Other than neighboring Carbon County (1% Native American/Other), Wasatch County (0.8% Native American/Other), Summit County (0.5% Native American/Other), and Uinta County (0.2% Native American/Other).

Duchesne County's Multiracial Population

613 residents of Duchesne County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Duchesne County is comparable to the share in Utah overall, where 4% of the population is Multiracial. Duchesne County ranks 16th statewide in terms of Multiracial residents as a share of the population, out of 29 counties.

Since the 2020 Census, Duchesne County's Multiracial population has grown by an estimated 15.0%. Multiracial residents' share of Duchesne County's population has remained roughly unchanged at 3.0%.

Duchesne County is more Multiracial than neighboring Carbon County (2.9% Multiracial), and Wasatch County (2.7% Multiracial). Duchesne County is less Multiracial than neighboring Summit County (3.1% Multiracial), Uintah County (5.8% Multiracial), and Uinta County (3.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.