Jefferson County Demographics

A map of Jefferson County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Black	5,857	6,138	82.9%	84.5%
White	929	891	13.1%	12.3%
Hispanic	143	74	2.0%	1.0%
Multiracial	99	123	1.4%	1.7%
Asian	35	14	0.5%	0.2%
Native American/Other	5	20	0.1%	0.3%

Jefferson County, Mississippi has an estimated population of 7,068, a slight decrease from the 7,260 recorded in the 2020 Census. The population is 82.9% Black, 13.1% White, 2.0% Hispanic, 1.4% Multiracial, 0.5% Asian, and 0.1% Native American/Other. This demographic dot map shows the population of Jefferson County, with one dot drawn for each person counted by the Census, color-coded by race.

Jefferson 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 Jefferson County, that probability was 27.0% in 2020 and 29.5% in the most recent ACS estimates.

Jefferson County is ranked the 79th most populous county in Mississippi, out of 82 counties. Jefferson County was ranked the 79th most populous county in the 2020 Census.

Jefferson County's White Population

929 residents of Jefferson County, or 13.1% of the population, identify as White. The share of White residents in Jefferson County is significantly lower than in Mississippi overall, where 55.2% of the population is White. Jefferson County ranks 81st statewide in terms of White residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's White population has grown by an estimated 4.3%. White residents' share of Jefferson County's population has increased from 12.3% to 13.1%.

Jefferson County is more White than neighboring Claiborne County (11% White). Jefferson County is less White than neighboring Franklin County (62.4% White), Adams County (37.1% White), Tensas County (41.3% White), and Copiah County (43.1% White).

Jefferson County's Black Population

5,857 residents of Jefferson County, or 82.9% of the population, identify as Black. The share of Black residents in Jefferson County is significantly higher than in Mississippi overall, where 36.3% of the population is Black. Jefferson County ranks 2nd statewide in terms of Black residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's Black population has declined by an estimated 4.6%. Black residents' share of Jefferson County's population has decreased from 84.5% to 82.9%.

Jefferson County is more Black than neighboring Franklin County (35% Black), Adams County (56% Black), Tensas County (54% Black), and Copiah County (50.5% Black). Jefferson County is less Black than neighboring Claiborne County (85.9% Black).

Jefferson County's Asian Population

35 residents of Jefferson County, or 0.5% of the population, identify as Asian. The share of Asian residents in Jefferson County is comparable to the share in Mississippi overall, where 1% of the population is Asian. Jefferson County ranks 60th statewide in terms of Asian residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's Asian population has grown by an estimated 150.0%. Asian residents' share of Jefferson County's population has remained roughly unchanged at 0.5%.

Jefferson County is more Asian than neighboring Claiborne County (0.1% Asian), Franklin County (0% Asian), Adams County (0.2% Asian), and Copiah County (0.3% Asian). Jefferson County is less Asian than neighboring Tensas County (1% Asian).

Jefferson County's Hispanic Population

143 residents of Jefferson County, or 2.0% of the population, identify as Hispanic. The share of Hispanic residents in Jefferson County is comparable to the share in Mississippi overall, where 3.7% of the population is Hispanic. Jefferson County ranks 72nd statewide in terms of Hispanic residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's Hispanic population has grown by an estimated 93.2%. Hispanic residents' share of Jefferson County's population has increased from 1.0% to 2.0%.

Jefferson County is more Hispanic than neighboring Claiborne County (0.3% Hispanic), Franklin County (1.1% Hispanic), and Tensas County (1.1% Hispanic). Jefferson County is less Hispanic than neighboring Adams County (3.5% Hispanic), and Copiah County (4.6% Hispanic).

Jefferson County's Native American/Other Population

5 residents of Jefferson County, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Jefferson County is comparable to the share in Mississippi overall, where 0.8% of the population is Native American/Other. Jefferson County ranks 61st statewide in terms of Native American/Other residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's Native American/Other population has declined by an estimated 75.0%. Native American/Other residents' share of Jefferson County's population has remained roughly unchanged at 0.1%.

Jefferson County is more Native American/Other than neighboring Tensas County (0% Native American/Other). Jefferson County is less Native American/Other than neighboring Claiborne County (0.2% Native American/Other), Franklin County (0.2% Native American/Other), Adams County (1.2% Native American/Other), and Copiah County (0.6% Native American/Other).

Jefferson County's Multiracial Population

99 residents of Jefferson County, or 1.4% of the population, identify as Multiracial. The share of Multiracial residents in Jefferson County is comparable to the share in Mississippi overall, where 3% of the population is Multiracial. Jefferson County ranks 74th statewide in terms of Multiracial residents as a share of the population, out of 82 counties.

Since the 2020 Census, Jefferson County's Multiracial population has declined by an estimated 19.5%. Multiracial residents' share of Jefferson County's population has remained roughly unchanged at 1.4%.

Jefferson County is more Multiracial than neighboring Franklin County (1.3% Multiracial), and Copiah County (0.8% Multiracial). Jefferson County is less Multiracial than neighboring Claiborne County (2.4% Multiracial), Adams County (1.9% Multiracial), and Tensas County (2.6% 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.