DeKalb County Demographics

A map of DeKalb County's Population by Race

DeKalb County, Indiana has an estimated population of 43,807, a slight increase from the 43,265 recorded in the 2020 Census. The population is 93.6% White, 3.1% Hispanic, 2.5% Multiracial, 0.6% Asian, 0.2% Native American/Other, and 0.1% Black. This demographic dot map shows the population of DeKalb County, with one dot drawn for each person counted by the Census, color-coded by race.

DeKalb has become less racially diverse since the 2020 Census. It is considerably less diverse than Indiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In DeKalb County, that probability was 13.4% in 2020 and 12.3% in the most recent ACS estimates.

DeKalb County is ranked the 35th most populous county in Indiana, out of 92 counties. DeKalb County was ranked the 36th most populous county in the 2020 Census.

DeKalb County's White Population

40,987 residents of DeKalb County, or 93.6% of the population, identify as White. The share of White residents in DeKalb County is significantly higher than in Indiana overall, where 75.4% of the population is White. DeKalb County ranks 32nd statewide in terms of White residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's White population has grown by an estimated 1.9%. White residents' share of DeKalb County's population has increased from 93.0% to 93.6%.

DeKalb County is more White than neighboring Steuben County (91.4% White), Allen County (69.8% White), Noble County (85.1% White), Williams County (90.8% White), and LaGrange County (93.4% White).

DeKalb County's Black Population

46 residents of DeKalb County, or 0.1% of the population, identify as Black. The share of Black residents in DeKalb County is lower than in Indiana overall, where 9.1% of the population is Black. DeKalb County ranks 69th statewide in terms of Black residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's Black population has declined by an estimated 74.9%. Black residents' share of DeKalb County's population has remained roughly unchanged at 0.1%.

DeKalb County is less Black than neighboring Steuben County (0.7% Black), Allen County (10.5% Black), Noble County (0.3% Black), Williams County (0.6% Black), and LaGrange County (0.3% Black).

DeKalb County's Asian Population

241 residents of DeKalb County, or 0.6% of the population, identify as Asian. The share of Asian residents in DeKalb County is comparable to the share in Indiana overall, where 2.6% of the population is Asian. DeKalb County ranks 39th statewide in terms of Asian residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's Asian population has grown by an estimated 7.1%. Asian residents' share of DeKalb County's population has remained roughly unchanged at 0.6%.

DeKalb County is more Asian than neighboring LaGrange County (0.1% Asian). DeKalb County is less Asian than neighboring Steuben County (0.7% Asian), Allen County (5.3% Asian), and Williams County (0.7% Asian).

DeKalb County's Hispanic Population

1,347 residents of DeKalb County, or 3.1% of the population, identify as Hispanic. The share of Hispanic residents in DeKalb County is lower than in Indiana overall, where 8.6% of the population is Hispanic. DeKalb County ranks 57th statewide in terms of Hispanic residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's Hispanic population has grown by an estimated 13.7%. Hispanic residents' share of DeKalb County's population has remained roughly unchanged at 3.1%.

DeKalb County is less Hispanic than neighboring Steuben County (4.5% Hispanic), Allen County (9% Hispanic), Noble County (11.3% Hispanic), Williams County (5.4% Hispanic), and LaGrange County (4.5% Hispanic).

DeKalb County's Native American/Other Population

92 residents of DeKalb 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 DeKalb County is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. DeKalb County ranks 55th statewide in terms of Native American/Other residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's Native American/Other population has declined by an estimated 50.3%. Native American/Other residents' share of DeKalb County's population has remained roughly unchanged at 0.2%.

DeKalb County is more Native American/Other than neighboring LaGrange County (0.1% Native American/Other). DeKalb County is less Native American/Other than neighboring Steuben County (0.6% Native American/Other), Allen County (0.6% Native American/Other), and Noble County (0.5% Native American/Other).

DeKalb County's Multiracial Population

1,094 residents of DeKalb County, or 2.5% of the population, identify as Multiracial. The share of Multiracial residents in DeKalb County is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. DeKalb County ranks 65th statewide in terms of Multiracial residents as a share of the population, out of 92 counties.

Since the 2020 Census, DeKalb County's Multiracial population has declined by an estimated 12.8%. Multiracial residents' share of DeKalb County's population has remained roughly unchanged at 2.5%.

DeKalb County is more Multiracial than neighboring Steuben County (2.2% Multiracial), Noble County (2.2% Multiracial), Williams County (2.3% Multiracial), and LaGrange County (1.6% Multiracial). DeKalb County is less Multiracial than neighboring Allen County (4.8% 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.