Dearborn County Demographics

A map of Dearborn County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	48,064	47,319	94.1%	93.4%
Multiracial	1,509	1,896	3.0%	3.7%
Hispanic	795	724	1.6%	1.4%
Native American/Other	314	237	0.6%	0.5%
Asian	273	211	0.5%	0.4%
Black	139	292	0.3%	0.6%

Dearborn County, Indiana has an estimated population of 51,094, a less than 1% change from the 50,679 recorded in the 2020 Census. The population is 94.1% White, 3.0% Multiracial, 1.6% Hispanic, 0.6% Native American/Other, 0.5% Asian, and 0.3% Black. This demographic dot map shows the population of Dearborn County, with one dot drawn for each person counted by the Census, color-coded by race.

Dearborn 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 Dearborn County, that probability was 12.7% in 2020 and 11.4% in the most recent ACS estimates.

Dearborn County is ranked the 28th most populous county in Indiana, out of 92 counties. Dearborn County was ranked the 28th most populous county in the 2020 Census.

Dearborn County's White Population

48,064 residents of Dearborn County, or 94.1% of the population, identify as White. The share of White residents in Dearborn County is significantly higher than in Indiana overall, where 75.4% of the population is White. Dearborn County ranks 24th statewide in terms of White residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's White population has grown by an estimated 1.6%. White residents' share of Dearborn County's population has increased from 93.4% to 94.1%.

Dearborn County is more White than neighboring Boone County (82.3% White). Dearborn County is less White than neighboring Ohio County (94.8% White), Franklin County (95.7% White), Ripley County (94.2% White), and Switzerland County (94.6% White).

Dearborn County's Black Population

139 residents of Dearborn County, or 0.3% of the population, identify as Black. The share of Black residents in Dearborn County is lower than in Indiana overall, where 9.1% of the population is Black. Dearborn County ranks 52nd statewide in terms of Black residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's Black population has declined by an estimated 52.4%. Black residents' share of Dearborn County's population has remained roughly unchanged at 0.3%.

Dearborn County is more Black than neighboring Ohio County (0.1% Black), and Franklin County (0.1% Black). Dearborn County is less Black than neighboring Ripley County (0.7% Black), and Boone County (4.4% Black).

Dearborn County's Asian Population

273 residents of Dearborn County, or 0.5% of the population, identify as Asian. The share of Asian residents in Dearborn County is slightly lower than in Indiana overall, where 2.6% of the population is Asian. Dearborn County ranks 53rd statewide in terms of Asian residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's Asian population has grown by an estimated 29.4%. Asian residents' share of Dearborn County's population has remained roughly unchanged at 0.5%.

Dearborn County is more Asian than neighboring Switzerland County (0.3% Asian). Dearborn County is less Asian than neighboring Ohio County (1.1% Asian), Franklin County (0.9% Asian), and Boone County (2.4% Asian).

Dearborn County's Hispanic Population

795 residents of Dearborn County, or 1.6% of the population, identify as Hispanic. The share of Hispanic residents in Dearborn County is lower than in Indiana overall, where 8.6% of the population is Hispanic. Dearborn County ranks 80th statewide in terms of Hispanic residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's Hispanic population has grown by an estimated 9.8%. Hispanic residents' share of Dearborn County's population has remained roughly unchanged at 1.6%.

Dearborn County is more Hispanic than neighboring Franklin County (1.2% Hispanic), and Switzerland County (0.6% Hispanic). Dearborn County is less Hispanic than neighboring Ohio County (1.9% Hispanic), Ripley County (2% Hispanic), and Boone County (5.9% Hispanic).

Dearborn County's Native American/Other Population

314 residents of Dearborn County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Dearborn County is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. Dearborn County ranks 44th statewide in terms of Native American/Other residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's Native American/Other population has grown by an estimated 32.5%. Native American/Other residents' share of Dearborn County's population has remained roughly unchanged at 0.6%.

Dearborn County is more Native American/Other than neighboring Ohio County (0.2% Native American/Other), Franklin County (0.4% Native American/Other), Ripley County (0.4% Native American/Other), and Switzerland County (0.4% Native American/Other). Dearborn County is less Native American/Other than neighboring Boone County (0.8% Native American/Other).

Dearborn County's Multiracial Population

1,509 residents of Dearborn County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Dearborn County is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. Dearborn County ranks 25th statewide in terms of Multiracial residents as a share of the population, out of 92 counties.

Since the 2020 Census, Dearborn County's Multiracial population has declined by an estimated 20.4%. Multiracial residents' share of Dearborn County's population has decreased from 3.7% to 3.0%.

Dearborn County is more Multiracial than neighboring Ohio County (2% Multiracial), Franklin County (1.8% Multiracial), and Ripley County (2.2% Multiracial). Dearborn County is less Multiracial than neighboring Boone County (4.2% Multiracial), and Switzerland County (3.8% 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.