Champaign County Demographics

A map of Champaign County's Population by Race

Champaign County, Ohio has an estimated population of 38,804, a less than 1% change from the 38,714 recorded in the 2020 Census. The population is 91.7% White, 3.6% Multiracial, 1.8% Hispanic, 1.6% Black, 0.7% Native American/Other, and 0.5% Asian. This demographic dot map shows the population of Champaign County, with one dot drawn for each person counted by the Census, color-coded by race.

Champaign has become slightly less racially diverse since the 2020 Census. It is considerably less diverse than Ohio overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Champaign County, that probability was 16.5% in 2020 and 15.7% in the most recent ACS estimates.

Champaign County is ranked the 63rd most populous county in Ohio, out of 88 counties. Champaign County was ranked the 63rd most populous county in the 2020 Census.

Champaign County's White Population

35,596 residents of Champaign County, or 91.7% of the population, identify as White. The share of White residents in Champaign County is significantly higher than in Ohio overall, where 75.8% of the population is White. Champaign County ranks 36th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's White population has remained roughly the same. White residents' share of Champaign County's population has increased from 91.2% to 91.7%.

Champaign County is more White than neighboring Clark County (81.7% White), Logan County (91.5% White), Union County (84.5% White), Madison County (86.2% White), and Greene County (81.3% White).

Champaign County's Black Population

637 residents of Champaign County, or 1.6% of the population, identify as Black. The share of Black residents in Champaign County is considerably lower than in Ohio overall, where 12% of the population is Black. Champaign County ranks 46th statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's Black population has declined by an estimated 6.7%. Black residents' share of Champaign County's population has remained roughly unchanged at 1.6%.

Champaign County is less Black than neighboring Clark County (8% Black), Logan County (1.7% Black), Union County (2.3% Black), Madison County (4.3% Black), and Greene County (5.8% Black).

Champaign County's Asian Population

187 residents of Champaign County, or 0.5% of the population, identify as Asian. The share of Asian residents in Champaign County is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Champaign County ranks 67th statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's Asian population has grown by an estimated 49.6%. Asian residents' share of Champaign County's population has remained roughly unchanged at 0.5%.

Champaign County is less Asian than neighboring Clark County (0.6% Asian), Union County (5% Asian), Madison County (1.3% Asian), and Greene County (3% Asian).

Champaign County's Hispanic Population

708 residents of Champaign County, or 1.8% of the population, identify as Hispanic. The share of Hispanic residents in Champaign County is slightly lower than in Ohio overall, where 4.8% of the population is Hispanic. Champaign County ranks 57th statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's Hispanic population has grown by an estimated 9.3%. Hispanic residents' share of Champaign County's population has remained roughly unchanged at 1.8%.

Champaign County is less Hispanic than neighboring Clark County (4.2% Hispanic), Logan County (2.4% Hispanic), Union County (3.4% Hispanic), Madison County (3.1% Hispanic), and Greene County (3.3% Hispanic).

Champaign County's Native American/Other Population

278 residents of Champaign County, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Champaign County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Champaign County ranks 23rd statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's Native American/Other population has grown by an estimated 23.6%. Native American/Other residents' share of Champaign County's population has remained roughly unchanged at 0.7%.

Champaign County is more Native American/Other than neighboring Clark County (0.3% Native American/Other), Logan County (0.3% Native American/Other), Union County (0.6% Native American/Other), and Madison County (0.6% Native American/Other). Champaign County is less Native American/Other than neighboring Greene County (0.9% Native American/Other).

Champaign County's Multiracial Population

1,398 residents of Champaign County, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Champaign County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Champaign County ranks 21st statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Champaign County's Multiracial population has declined by an estimated 18.7%. Multiracial residents' share of Champaign County's population has decreased from 4.4% to 3.6%.

Champaign County is less Multiracial than neighboring Clark County (5.1% Multiracial), Logan County (3.7% Multiracial), Union County (4.2% Multiracial), Madison County (4.5% Multiracial), and Greene County (5.8% 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.