Knox County Demographics

A map of Knox County's Population by Race

Knox County, Indiana has an estimated population of 36,007, a less than 1% change from the 36,282 recorded in the 2020 Census. The population is 89.4% White, 4.8% Multiracial, 3.0% Hispanic, 1.7% Black, 0.9% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Knox County, with one dot drawn for each person counted by the Census, color-coded by race.

Knox has become more 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 Knox County, that probability was 16.9% in 2020 and 19.6% in the most recent ACS estimates.

Knox County is ranked the 44th most populous county in Indiana, out of 92 counties. Knox County was ranked the 43rd most populous county in the 2020 Census.

Knox County's White Population

32,206 residents of Knox County, or 89.4% of the population, identify as White. The share of White residents in Knox County is considerably higher than in Indiana overall, where 75.4% of the population is White. Knox County ranks 48th statewide in terms of White residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's White population has declined by an estimated 2.5%. White residents' share of Knox County's population has decreased from 91.0% to 89.4%.

Knox County is more White than neighboring Lawrence County (83.8% White), and Daviess County (87.4% White). Knox County is less White than neighboring Pike County (95.4% White), Sullivan County (90.4% White), and Gibson County (90.1% White).

Knox County's Black Population

604 residents of Knox County, or 1.7% of the population, identify as Black. The share of Black residents in Knox County is lower than in Indiana overall, where 9.1% of the population is Black. Knox County ranks 31st statewide in terms of Black residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's Black population has declined by an estimated 13.2%. Black residents' share of Knox County's population has remained roughly unchanged at 1.7%.

Knox County is more Black than neighboring Pike County (0.4% Black), and Daviess County (1.6% Black). Knox County is less Black than neighboring Lawrence County (6.2% Black), Sullivan County (3% Black), and Gibson County (1.8% Black).

Knox County's Asian Population

310 residents of Knox County, or 0.9% of the population, identify as Asian. The share of Asian residents in Knox County is comparable to the share in Indiana overall, where 2.6% of the population is Asian. Knox County ranks 29th statewide in terms of Asian residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's Asian population has grown by an estimated 9.5%. Asian residents' share of Knox County's population has remained roughly unchanged at 0.9%.

Knox County is more Asian than neighboring Lawrence County (0.5% Asian), Pike County (0% Asian), Daviess County (0.3% Asian), Sullivan County (0.4% Asian), and Gibson County (0.6% Asian).

Knox County's Hispanic Population

1,076 residents of Knox County, or 3.0% of the population, identify as Hispanic. The share of Hispanic residents in Knox County is lower than in Indiana overall, where 8.6% of the population is Hispanic. Knox County ranks 55th statewide in terms of Hispanic residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's Hispanic population has grown by an estimated 7.1%. Hispanic residents' share of Knox County's population has remained roughly unchanged at 3.0%.

Knox County is more Hispanic than neighboring Lawrence County (2.1% Hispanic), Pike County (1.1% Hispanic), Sullivan County (1.9% Hispanic), and Gibson County (2.3% Hispanic). Knox County is less Hispanic than neighboring Daviess County (6.5% Hispanic).

Knox County's Native American/Other Population

66 residents of Knox 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 Knox County is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. Knox County ranks 38th statewide in terms of Native American/Other residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's Native American/Other population has declined by an estimated 64.1%. Native American/Other residents' share of Knox County's population has remained roughly unchanged at 0.2%.

Knox County is more Native American/Other than neighboring Lawrence County (0.1% Native American/Other). Knox County is less Native American/Other than neighboring Pike County (0.9% Native American/Other), Daviess County (0.6% Native American/Other), Sullivan County (0.6% Native American/Other), and Gibson County (0.9% Native American/Other).

Knox County's Multiracial Population

1,745 residents of Knox County, or 4.8% of the population, identify as Multiracial. The share of Multiracial residents in Knox County is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. Knox County ranks 55th statewide in terms of Multiracial residents as a share of the population, out of 92 counties.

Since the 2020 Census, Knox County's Multiracial population has grown by an estimated 60.5%. Multiracial residents' share of Knox County's population has increased from 3.0% to 4.8%.

Knox County is more Multiracial than neighboring Pike County (2.1% Multiracial), Daviess County (3.7% Multiracial), Sullivan County (3.7% Multiracial), and Gibson County (4.3% Multiracial). Knox County is less Multiracial than neighboring Lawrence County (7.3% 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.