Madison County Demographics

A map of Madison County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	38,299	37,761	86.2%	86.2%
Multiracial	2,007	1,644	4.5%	3.8%
Black	1,908	2,664	4.3%	6.1%
Hispanic	1,395	1,263	3.1%	2.9%
Asian	562	253	1.3%	0.6%
Native American/Other	252	239	0.6%	0.5%

Madison County, Ohio has an estimated population of 44,423, a slight increase from the 43,824 recorded in the 2020 Census. The population is 86.2% White, 4.5% Multiracial, 4.3% Black, 3.1% Hispanic, 1.3% Asian, and 0.6% Native American/Other. This demographic dot map shows the population of Madison County, with one dot drawn for each person counted by the Census, color-coded by race.

Madison is about as racially diverse as it was in 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 Madison County, that probability was 25.2% in 2020 and 25.2% in the most recent ACS estimates.

Madison County is ranked the 53rd most populous county in Ohio, out of 88 counties. Madison County was ranked the 54th most populous county in the 2020 Census.

Madison County's White Population

38,299 residents of Madison County, or 86.2% of the population, identify as White. The share of White residents in Madison County is considerably higher than in Ohio overall, where 75.8% of the population is White. Madison County ranks 60th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's White population has grown by an estimated 1.4%. White residents' share of Madison County's population has remained roughly unchanged at 86.2%.

Madison County is more White than neighboring Clark County (81.7% White), Franklin County (58% White), and Union County (84.5% White). Madison County is less White than neighboring Fayette County (90.8% White), and Champaign County (91.7% White).

Madison County's Black Population

1,908 residents of Madison County, or 4.3% of the population, identify as Black. The share of Black residents in Madison County is lower than in Ohio overall, where 12% of the population is Black. Madison County ranks 19th statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's Black population has declined by an estimated 28.4%. Black residents' share of Madison County's population has decreased from 6.1% to 4.3%.

Madison County is more Black than neighboring Fayette County (2% Black), Union County (2.3% Black), and Champaign County (1.6% Black). Madison County is less Black than neighboring Clark County (8% Black), and Franklin County (23.1% Black).

Madison County's Asian Population

562 residents of Madison County, or 1.3% of the population, identify as Asian. The share of Asian residents in Madison County is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Madison County ranks 37th statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's Asian population has grown by an estimated 122.1%. Asian residents' share of Madison County's population has increased from 0.6% to 1.3%.

Madison County is more Asian than neighboring Fayette County (0.8% Asian), Clark County (0.6% Asian), and Champaign County (0.5% Asian). Madison County is less Asian than neighboring Franklin County (5.6% Asian), and Union County (5% Asian).

Madison County's Hispanic Population

1,395 residents of Madison County, or 3.1% of the population, identify as Hispanic. The share of Hispanic residents in Madison County is comparable to the share in Ohio overall, where 4.8% of the population is Hispanic. Madison County ranks 33rd statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's Hispanic population has grown by an estimated 10.5%. Hispanic residents' share of Madison County's population has remained roughly unchanged at 3.1%.

Madison County is more Hispanic than neighboring Fayette County (2.5% Hispanic), and Champaign County (1.8% Hispanic). Madison County is less Hispanic than neighboring Clark County (4.2% Hispanic), Franklin County (7.5% Hispanic), and Union County (3.4% Hispanic).

Madison County's Native American/Other Population

252 residents of Madison 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 Madison County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Madison County ranks 27th statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's Native American/Other population has grown by an estimated 5.4%. Native American/Other residents' share of Madison County's population has remained roughly unchanged at 0.6%.

Madison County is more Native American/Other than neighboring Fayette County (0.2% Native American/Other), and Clark County (0.3% Native American/Other). Madison County is less Native American/Other than neighboring Champaign County (0.7% Native American/Other).

Madison County's Multiracial Population

2,007 residents of Madison County, or 4.5% of the population, identify as Multiracial. The share of Multiracial residents in Madison County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Madison County ranks 45th statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Madison County's Multiracial population has grown by an estimated 22.1%. Multiracial residents' share of Madison County's population has increased from 3.8% to 4.5%.

Madison County is more Multiracial than neighboring Fayette County (3.7% Multiracial), Union County (4.2% Multiracial), and Champaign County (3.6% Multiracial). Madison County is less Multiracial than neighboring Clark County (5.1% Multiracial), and Franklin County (5.2% 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.