Marion County Demographics

A map of Marion County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	262,011	253,837	65.5%	67.5%
Hispanic	68,129	55,910	17.0%	14.9%
Black	46,349	42,795	11.6%	11.4%
Multiracial	13,628	14,512	3.4%	3.9%
Asian	6,921	5,973	1.7%	1.6%
Native American/Other	3,040	2,881	0.8%	0.8%

Marion County, Florida has an estimated population of 400,078, an increase from the 375,908 recorded in the 2020 Census. The population is 65.5% White, 17.0% Hispanic, 11.6% Black, 3.4% Multiracial, 1.7% Asian, and 0.8% Native American/Other. This demographic dot map shows the population of Marion County, with one dot drawn for each person counted by the Census, color-coded by race.

Marion has become more racially diverse since the 2020 Census. It is considerably less diverse than Florida overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Marion County, that probability was 50.7% in 2020 and 52.7% in the most recent ACS estimates.

Marion County is ranked the 18th most populous county in Florida, out of 67 counties. Marion County was ranked the 18th most populous county in the 2020 Census.

Marion County's White Population

262,011 residents of Marion County, or 65.5% of the population, identify as White. The share of White residents in Marion County is significantly higher than in Florida overall, where 50.4% of the population is White. Marion County ranks 39th statewide in terms of White residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's White population has grown by an estimated 3.2%. White residents' share of Marion County's population has decreased from 67.5% to 65.5%.

Marion County is more White than neighboring Alachua County (57.6% White), and Lake County (63.6% White). Marion County is less White than neighboring Sumter County (83.6% White), Putnam County (69.3% White), and Citrus County (85.3% White).

Marion County's Black Population

46,349 residents of Marion County, or 11.6% of the population, identify as Black. The share of Black residents in Marion County is slightly lower than in Florida overall, where 14.6% of the population is Black. Marion County ranks 32nd statewide in terms of Black residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's Black population has grown by an estimated 8.3%. Black residents' share of Marion County's population has remained roughly unchanged at 11.6%.

Marion County is more Black than neighboring Sumter County (6.3% Black), Lake County (10.2% Black), and Citrus County (1.7% Black). Marion County is less Black than neighboring Putnam County (14.7% Black), and Alachua County (19% Black).

Marion County's Asian Population

6,921 residents of Marion County, or 1.7% of the population, identify as Asian. The share of Asian residents in Marion County is comparable to the share in Florida overall, where 2.9% of the population is Asian. Marion County ranks 27th statewide in terms of Asian residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's Asian population has grown by an estimated 15.9%. Asian residents' share of Marion County's population has remained roughly unchanged at 1.7%.

Marion County is more Asian than neighboring Sumter County (1% Asian), Putnam County (0.5% Asian), and Citrus County (1.3% Asian). Marion County is less Asian than neighboring Alachua County (6% Asian), and Lake County (2% Asian).

Marion County's Hispanic Population

68,129 residents of Marion County, or 17.0% of the population, identify as Hispanic. The share of Hispanic residents in Marion County is considerably lower than in Florida overall, where 27.4% of the population is Hispanic. Marion County ranks 25th statewide in terms of Hispanic residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's Hispanic population has grown by an estimated 21.9%. Hispanic residents' share of Marion County's population has increased from 14.9% to 17.0%.

Marion County is more Hispanic than neighboring Sumter County (6.4% Hispanic), Putnam County (11.2% Hispanic), Alachua County (12.6% Hispanic), and Citrus County (7% Hispanic). Marion County is less Hispanic than neighboring Lake County (18.8% Hispanic).

Marion County's Native American/Other Population

3,040 residents of Marion County, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Marion County is comparable to the share in Florida overall, where 0.8% of the population is Native American/Other. Marion County ranks 32nd statewide in terms of Native American/Other residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's Native American/Other population has grown by an estimated 5.5%. Native American/Other residents' share of Marion County's population has remained roughly unchanged at 0.8%.

Marion County is more Native American/Other than neighboring Sumter County (0.6% Native American/Other), Putnam County (0.6% Native American/Other), Alachua County (0.7% Native American/Other), and Citrus County (0.7% Native American/Other). Marion County is less Native American/Other than neighboring Lake County (1% Native American/Other).

Marion County's Multiracial Population

13,628 residents of Marion County, or 3.4% of the population, identify as Multiracial. The share of Multiracial residents in Marion County is comparable to the share in Florida overall, where 3.8% of the population is Multiracial. Marion County ranks 28th statewide in terms of Multiracial residents as a share of the population, out of 67 counties.

Since the 2020 Census, Marion County's Multiracial population has declined by an estimated 6.1%. Multiracial residents' share of Marion County's population has decreased from 3.9% to 3.4%.

Marion County is more Multiracial than neighboring Sumter County (2% Multiracial). Marion County is less Multiracial than neighboring Putnam County (3.6% Multiracial), Alachua County (4.1% Multiracial), Lake County (4.4% Multiracial), and Citrus County (4.1% 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.