De Witt County Demographics
A map of De Witt County's Population by Race
De Witt County, Illinois has an estimated population of 15,373, a less than 1% change from the 15,516 recorded in the 2020 Census. The population is 92.7% White, 3.5% Hispanic, 2.3% Multiracial, 1.0% Black, 0.2% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of De Witt County, with one dot drawn for each person counted by the Census, color-coded by race.
De Witt is about as racially diverse as it was in 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 De Witt County, that probability was 14.0% in 2020 and 13.8% in the most recent ACS estimates.
De Witt County is ranked the 70th most populous county in Illinois, out of 102 counties. De Witt County was ranked the 70th most populous county in the 2020 Census.
De Witt County's White Population
14,255 residents of De Witt County, or 92.7% of the population, identify as White. The share of White residents in De Witt County is significantly higher than in Illinois overall, where 58.1% of the population is White. De Witt County ranks 33rd statewide in terms of White residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's White population has remained roughly the same. White residents' share of De Witt County's population has remained roughly unchanged at 92.7%.
De Witt County is more White than neighboring Macon County (73.3% White), McLean County (76.2% White), and Logan County (85.9% White). De Witt County is less White than neighboring Piatt County (94.8% White), and Moultrie County (95.1% White).
De Witt County's Black Population
155 residents of De Witt County, or 1.0% of the population, identify as Black. The share of Black residents in De Witt County is considerably lower than in Illinois overall, where 13.3% of the population is Black. De Witt County ranks 68th statewide in terms of Black residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's Black population has grown by an estimated 43.5%. Black residents' share of De Witt County's population has remained roughly unchanged at 1.0%.
De Witt County is less Black than neighboring Macon County (16.2% Black), McLean County (8.4% Black), Piatt County (1.2% Black), and Logan County (5.4% Black).
De Witt County's Asian Population
30 residents of De Witt County, or 0.2% of the population, identify as Asian. The share of Asian residents in De Witt County is lower than in Illinois overall, where 5.9% of the population is Asian. De Witt County ranks 87th statewide in terms of Asian residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's Asian population has declined by an estimated 25.0%. Asian residents' share of De Witt County's population has remained roughly unchanged at 0.2%.
De Witt County is more Asian than neighboring Moultrie County (0.1% Asian). De Witt County is less Asian than neighboring Macon County (1.5% Asian), McLean County (5.2% Asian), Piatt County (0.6% Asian), and Logan County (0.5% Asian).
De Witt County's Hispanic Population
540 residents of De Witt County, or 3.5% of the population, identify as Hispanic. The share of Hispanic residents in De Witt County is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. De Witt County ranks 49th statewide in terms of Hispanic residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's Hispanic population has grown by an estimated 5.9%. Hispanic residents' share of De Witt County's population has remained roughly unchanged at 3.5%.
De Witt County is more Hispanic than neighboring Macon County (2.9% Hispanic), Piatt County (1.6% Hispanic), and Moultrie County (1.7% Hispanic). De Witt County is less Hispanic than neighboring McLean County (6.4% Hispanic).
De Witt County's Native American/Other Population
35 residents of De Witt County, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in De Witt County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. De Witt County ranks 81st statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's Native American/Other population has declined by an estimated 31.4%. Native American/Other residents' share of De Witt County's population has remained roughly unchanged at 0.2%.
De Witt County is more Native American/Other than neighboring Logan County (0.1% Native American/Other), and Moultrie County (0.1% Native American/Other). De Witt County is less Native American/Other than neighboring Macon County (0.5% Native American/Other), and McLean County (0.4% Native American/Other).
De Witt County's Multiracial Population
358 residents of De Witt County, or 2.3% of the population, identify as Multiracial. The share of Multiracial residents in De Witt County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. De Witt County ranks 81st statewide in terms of Multiracial residents as a share of the population, out of 102 counties.
Since the 2020 Census, De Witt County's Multiracial population has declined by an estimated 18.1%. Multiracial residents' share of De Witt County's population has decreased from 2.8% to 2.3%.
De Witt County is more Multiracial than neighboring Piatt County (1.6% Multiracial), and Moultrie County (2.1% Multiracial). De Witt County is less Multiracial than neighboring Macon County (5.6% Multiracial), McLean County (3.3% Multiracial), and Logan County (4.6% 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.