Delta County Demographics

A map of Delta County's Population by Race

Delta County, Colorado has an estimated population of 31,598, a slight increase from the 31,196 recorded in the 2020 Census. The population is 79.8% White, 14.5% Hispanic, 3.1% Multiracial, 1.5% Native American/Other, 0.7% Black, and 0.5% Asian. This demographic dot map shows the population of Delta County, with one dot drawn for each person counted by the Census, color-coded by race.

Delta is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Colorado overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Delta County, that probability was 34.1% in 2020 and 34.2% in the most recent ACS estimates.

Delta County is ranked the 18th most populous county in Colorado, out of 64 counties. Delta County was ranked the 18th most populous county in the 2020 Census.

Delta County's White Population

25,202 residents of Delta County, or 79.8% of the population, identify as White. The share of White residents in Delta County is considerably higher than in Colorado overall, where 64.8% of the population is White. Delta County ranks 25th statewide in terms of White residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's White population has grown by an estimated 1.2%. White residents' share of Delta County's population has remained roughly unchanged at 79.8%.

Delta County is more White than neighboring Montrose County (73.1% White), Mesa County (78.4% White), and Garfield County (61.5% White). Delta County is less White than neighboring Ouray County (89.1% White), and Gunnison County (84.1% White).

Delta County's Black Population

206 residents of Delta County, or 0.7% of the population, identify as Black. The share of Black residents in Delta County is slightly lower than in Colorado overall, where 3.8% of the population is Black. Delta County ranks 45th statewide in terms of Black residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's Black population has grown by an estimated 70.2%. Black residents' share of Delta County's population has remained roughly unchanged at 0.7%.

Delta County is more Black than neighboring Montrose County (0.4% Black), Mesa County (0.6% Black), Ouray County (0.2% Black), Garfield County (0.6% Black), and Gunnison County (0.4% Black).

Delta County's Asian Population

167 residents of Delta County, or 0.5% of the population, identify as Asian. The share of Asian residents in Delta County is slightly lower than in Colorado overall, where 3.2% of the population is Asian. Delta County ranks 25th statewide in terms of Asian residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's Asian population has declined by an estimated 29.2%. Asian residents' share of Delta County's population has remained roughly unchanged at 0.5%.

Delta County is less Asian than neighboring Mesa County (0.9% Asian), and Garfield County (0.8% Asian).

Delta County's Hispanic Population

4,571 residents of Delta County, or 14.5% of the population, identify as Hispanic. The share of Hispanic residents in Delta County is lower than in Colorado overall, where 22.5% of the population is Hispanic. Delta County ranks 35th statewide in terms of Hispanic residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's Hispanic population has grown by an estimated 5.6%. Hispanic residents' share of Delta County's population has increased from 13.9% to 14.5%.

Delta County is more Hispanic than neighboring Ouray County (6.1% Hispanic), and Gunnison County (10% Hispanic). Delta County is less Hispanic than neighboring Montrose County (21.5% Hispanic), Mesa County (15.5% Hispanic), and Garfield County (32.6% Hispanic).

Delta County's Native American/Other Population

471 residents of Delta County, or 1.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Delta County is comparable to the share in Colorado overall, where 1% of the population is Native American/Other. Delta County ranks 40th statewide in terms of Native American/Other residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's Native American/Other population has grown by an estimated 46.3%. Native American/Other residents' share of Delta County's population has increased from 1.0% to 1.5%.

Delta County is more Native American/Other than neighboring Montrose County (0.8% Native American/Other), Mesa County (1.2% Native American/Other), Ouray County (0.2% Native American/Other), Garfield County (1% Native American/Other), and Gunnison County (1.1% Native American/Other).

Delta County's Multiracial Population

981 residents of Delta County, or 3.1% of the population, identify as Multiracial. The share of Multiracial residents in Delta County is comparable to the share in Colorado overall, where 4.6% of the population is Multiracial. Delta County ranks 26th statewide in terms of Multiracial residents as a share of the population, out of 64 counties.

Since the 2020 Census, Delta County's Multiracial population has declined by an estimated 23.4%. Multiracial residents' share of Delta County's population has decreased from 4.1% to 3.1%.

Delta County is less Multiracial than neighboring Montrose County (3.7% Multiracial), Mesa County (3.5% Multiracial), Ouray County (3.9% Multiracial), Garfield County (3.4% Multiracial), and Gunnison County (3.8% 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.