Douglas County Demographics

A map of Douglas County's Population by Race

Douglas County, Illinois has an estimated population of 19,751, a less than 1% change from the 19,740 recorded in the 2020 Census. The population is 87.4% White, 8.5% Hispanic, 2.0% Multiracial, 1.2% Black, 0.4% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Douglas County, with one dot drawn for each person counted by the Census, color-coded by race.

Douglas has become more racially diverse since the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Douglas County, that probability was 21.4% in 2020 and 22.8% in the most recent ACS estimates.

Douglas County is ranked the 58th most populous county in Illinois, out of 102 counties. Douglas County was ranked the 58th most populous county in the 2020 Census.

Douglas County's White Population

17,268 residents of Douglas County, or 87.4% of the population, identify as White. The share of White residents in Douglas County is significantly higher than in Illinois overall, where 58.1% of the population is White. Douglas County ranks 51st statewide in terms of White residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's White population has remained roughly the same. White residents' share of Douglas County's population has decreased from 88.2% to 87.4%.

Douglas County is more White than neighboring Champaign County (62.4% White). Douglas County is less White than neighboring Coles County (88% White), Moultrie County (95.1% White), Piatt County (94.8% White), and Edgar County (95.8% White).

Douglas County's Black Population

245 residents of Douglas County, or 1.2% of the population, identify as Black. The share of Black residents in Douglas County is considerably lower than in Illinois overall, where 13.3% of the population is Black. Douglas County ranks 91st statewide in terms of Black residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's Black population has grown by an estimated 265.7%. Black residents' share of Douglas County's population has increased from 0.3% to 1.2%.

Douglas County is more Black than neighboring Moultrie County (1% Black), and Edgar County (0.7% Black). Douglas County is less Black than neighboring Coles County (3.6% Black), and Champaign County (13.4% Black).

Douglas County's Asian Population

82 residents of Douglas County, or 0.4% of the population, identify as Asian. The share of Asian residents in Douglas County is lower than in Illinois overall, where 5.9% of the population is Asian. Douglas County ranks 49th statewide in terms of Asian residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's Asian population has declined by an estimated 20.4%. Asian residents' share of Douglas County's population has remained roughly unchanged at 0.4%.

Douglas County is more Asian than neighboring Moultrie County (0.1% Asian), and Edgar County (0.2% Asian). Douglas County is less Asian than neighboring Coles County (1.1% Asian), Champaign County (11.4% Asian), and Piatt County (0.6% Asian).

Douglas County's Hispanic Population

1,672 residents of Douglas County, or 8.5% of the population, identify as Hispanic. The share of Hispanic residents in Douglas County is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. Douglas County ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's Hispanic population has grown by an estimated 6.8%. Hispanic residents' share of Douglas County's population has increased from 7.9% to 8.5%.

Douglas County is more Hispanic than neighboring Coles County (3.9% Hispanic), Champaign County (8.3% Hispanic), Moultrie County (1.7% Hispanic), Piatt County (1.6% Hispanic), and Edgar County (1.5% Hispanic).

Douglas County's Native American/Other Population

83 residents of Douglas County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Douglas County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Douglas County ranks 76th statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's Native American/Other population has grown by an estimated 22.1%. Native American/Other residents' share of Douglas County's population has remained roughly unchanged at 0.4%.

Douglas County is more Native American/Other than neighboring Moultrie County (0.1% Native American/Other), Piatt County (0.2% Native American/Other), and Edgar County (0% Native American/Other).

Douglas County's Multiracial Population

401 residents of Douglas County, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in Douglas County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Douglas County ranks 89th statewide in terms of Multiracial residents as a share of the population, out of 102 counties.

Since the 2020 Census, Douglas County's Multiracial population has declined by an estimated 22.4%. Multiracial residents' share of Douglas County's population has decreased from 2.6% to 2.0%.

Douglas County is more Multiracial than neighboring Piatt County (1.6% Multiracial), and Edgar County (1.7% Multiracial). Douglas County is less Multiracial than neighboring Coles County (3.1% Multiracial), Champaign County (4.1% Multiracial), and Moultrie County (2.1% 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.