Greene County Demographics

A map of Greene County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	137,906	135,603	81.3%	80.7%
Black	9,829	11,285	5.8%	6.7%
Multiracial	9,786	9,053	5.8%	5.4%
Hispanic	5,613	5,216	3.3%	3.1%
Asian	5,074	5,516	3.0%	3.3%
Native American/Other	1,480	1,293	0.9%	0.8%

Greene County, Ohio has an estimated population of 169,688, a slight increase from the 167,966 recorded in the 2020 Census. The population is 81.3% White, 5.8% Black, 5.8% Multiracial, 3.3% Hispanic, 3.0% Asian, and 0.9% Native American/Other. This demographic dot map shows the population of Greene County, with one dot drawn for each person counted by the Census, color-coded by race.

Greene 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 Greene County, that probability was 33.9% in 2020 and 33.1% in the most recent ACS estimates.

Greene County is ranked the 18th most populous county in Ohio, out of 88 counties. Greene County was ranked the 18th most populous county in the 2020 Census.

Greene County's White Population

137,906 residents of Greene County, or 81.3% of the population, identify as White. The share of White residents in Greene County is higher than in Ohio overall, where 75.8% of the population is White. Greene County ranks 76th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's White population has grown by an estimated 1.7%. White residents' share of Greene County's population has increased from 80.7% to 81.3%.

Greene County is more White than neighboring Montgomery County (67.7% White). Greene County is less White than neighboring Clark County (81.7% White), Clinton County (91.7% White), Warren County (81.8% White), and Fayette County (90.8% White).

Greene County's Black Population

9,829 residents of Greene County, or 5.8% of the population, identify as Black. The share of Black residents in Greene County is lower than in Ohio overall, where 12% of the population is Black. Greene County ranks 17th statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's Black population has declined by an estimated 12.9%. Black residents' share of Greene County's population has decreased from 6.7% to 5.8%.

Greene County is more Black than neighboring Clinton County (1.8% Black), Warren County (3.2% Black), and Fayette County (2% Black). Greene County is less Black than neighboring Clark County (8% Black), and Montgomery County (20.4% Black).

Greene County's Asian Population

5,074 residents of Greene County, or 3.0% of the population, identify as Asian. The share of Asian residents in Greene County is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Greene County ranks 8th statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's Asian population has declined by an estimated 8.0%. Asian residents' share of Greene County's population has remained roughly unchanged at 3.0%.

Greene County is more Asian than neighboring Clark County (0.6% Asian), Clinton County (0.3% Asian), Montgomery County (2.2% Asian), and Fayette County (0.8% Asian). Greene County is less Asian than neighboring Warren County (7.2% Asian).

Greene County's Hispanic Population

5,613 residents of Greene County, or 3.3% of the population, identify as Hispanic. The share of Hispanic residents in Greene County is comparable to the share in Ohio overall, where 4.8% of the population is Hispanic. Greene County ranks 30th statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's Hispanic population has grown by an estimated 7.6%. Hispanic residents' share of Greene County's population has remained roughly unchanged at 3.3%.

Greene County is more Hispanic than neighboring Clinton County (2.3% Hispanic), and Fayette County (2.5% Hispanic). Greene County is less Hispanic than neighboring Clark County (4.2% Hispanic), Warren County (3.5% Hispanic), and Montgomery County (4.2% Hispanic).

Greene County's Native American/Other Population

1,480 residents of Greene County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Greene County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Greene County ranks 3rd statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's Native American/Other population has grown by an estimated 14.5%. Native American/Other residents' share of Greene County's population has remained roughly unchanged at 0.9%.

Greene County is more Native American/Other than neighboring Clark County (0.3% Native American/Other), Clinton County (0.3% Native American/Other), Warren County (0.7% Native American/Other), Montgomery County (0.5% Native American/Other), and Fayette County (0.2% Native American/Other).

Greene County's Multiracial Population

9,786 residents of Greene County, or 5.8% of the population, identify as Multiracial. The share of Multiracial residents in Greene County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Greene County ranks 1st statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Greene County's Multiracial population has grown by an estimated 8.1%. Multiracial residents' share of Greene County's population has remained roughly unchanged at 5.8%.

Greene County is more Multiracial than neighboring Clark County (5.1% Multiracial), Clinton County (3.6% Multiracial), Warren County (3.6% Multiracial), Montgomery County (5% Multiracial), and Fayette County (3.7% 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.