Marion County Demographics

A map of Marion County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	15,341	15,721	63.4%	64.3%
Black	7,559	7,583	31.2%	31.0%
Multiracial	561	578	2.3%	2.4%
Hispanic	449	406	1.9%	1.7%
Native American/Other	207	88	0.9%	0.4%
Asian	76	65	0.3%	0.3%

Marion County, Mississippi has an estimated population of 24,193, a slight decrease from the 24,441 recorded in the 2020 Census. The population is 63.4% White, 31.2% Black, 2.3% Multiracial, 1.9% Hispanic, 0.9% Native American/Other, and 0.3% Asian. 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 Mississippi 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 48.9% in 2020 and 49.9% in the most recent ACS estimates.

Marion County is ranked the 39th most populous county in Mississippi, out of 82 counties. Marion County was ranked the 38th most populous county in the 2020 Census.

Marion County's White Population

15,341 residents of Marion County, or 63.4% of the population, identify as White. The share of White residents in Marion County is higher than in Mississippi overall, where 55.2% of the population is White. Marion County ranks 26th statewide in terms of White residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's White population has declined by an estimated 2.4%. White residents' share of Marion County's population has decreased from 64.3% to 63.4%.

Marion County is more White than neighboring Walthall County (52.9% White), Jefferson Davis County (37.8% White), and Washington County (62.5% White). Marion County is less White than neighboring Lamar County (70.6% White), and Lawrence County (63.5% White).

Marion County's Black Population

7,559 residents of Marion County, or 31.2% of the population, identify as Black. The share of Black residents in Marion County is lower than in Mississippi overall, where 36.3% of the population is Black. Marion County ranks 50th statewide in terms of Black residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's Black population has remained roughly the same. Black residents' share of Marion County's population has remained roughly unchanged at 31.2%.

Marion County is more Black than neighboring Lamar County (21.7% Black), and Washington County (26.8% Black). Marion County is less Black than neighboring Walthall County (41.9% Black), Jefferson Davis County (59.5% Black), and Lawrence County (31.7% Black).

Marion County's Asian Population

76 residents of Marion County, or 0.3% of the population, identify as Asian. The share of Asian residents in Marion County is comparable to the share in Mississippi overall, where 1% of the population is Asian. Marion County ranks 48th statewide in terms of Asian residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's Asian population has grown by an estimated 16.9%. Asian residents' share of Marion County's population has remained roughly unchanged at 0.3%.

Marion County is more Asian than neighboring Walthall County (0.2% Asian), Jefferson Davis County (0% Asian), and Washington County (0.1% Asian). Marion County is less Asian than neighboring Lamar County (0.9% Asian).

Marion County's Hispanic Population

449 residents of Marion County, or 1.9% of the population, identify as Hispanic. The share of Hispanic residents in Marion County is comparable to the share in Mississippi overall, where 3.7% of the population is Hispanic. Marion County ranks 47th statewide in terms of Hispanic residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's Hispanic population has grown by an estimated 10.6%. Hispanic residents' share of Marion County's population has remained roughly unchanged at 1.9%.

Marion County is more Hispanic than neighboring Jefferson Davis County (0.7% Hispanic). Marion County is less Hispanic than neighboring Walthall County (2% Hispanic), Lamar County (3.7% Hispanic), Lawrence County (2.1% Hispanic), and Washington County (3.3% Hispanic).

Marion County's Native American/Other Population

207 residents of Marion 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 Marion County is comparable to the share in Mississippi overall, where 0.8% of the population is Native American/Other. Marion County ranks 43rd statewide in terms of Native American/Other residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's Native American/Other population has grown by an estimated 135.2%. Native American/Other residents' share of Marion County's population has increased from 0.4% to 0.9%.

Marion County is more Native American/Other than neighboring Walthall County (0.4% Native American/Other), Lamar County (0.5% Native American/Other), Jefferson Davis County (0% Native American/Other), and Lawrence County (0.4% Native American/Other). Marion County is less Native American/Other than neighboring Washington County (1.1% Native American/Other).

Marion County's Multiracial Population

561 residents of Marion County, or 2.3% of the population, identify as Multiracial. The share of Multiracial residents in Marion County is comparable to the share in Mississippi overall, where 3% of the population is Multiracial. Marion County ranks 39th statewide in terms of Multiracial residents as a share of the population, out of 82 counties.

Since the 2020 Census, Marion County's Multiracial population has declined by an estimated 2.9%. Multiracial residents' share of Marion County's population has remained roughly unchanged at 2.3%.

Marion County is more Multiracial than neighboring Jefferson Davis County (1.9% Multiracial), and Lawrence County (2% Multiracial). Marion County is less Multiracial than neighboring Walthall County (2.8% Multiracial), Lamar County (2.6% Multiracial), and Washington County (6.1% 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.