Jefferson County Demographics

A map of Jefferson County's Population by Race

Jefferson County, Louisiana had a population of 440,781 in 2020. It was 47.3% White, 26.3% Black, 4.4% Asian, 17.9% Hispanic, 0.9% Native American/Other, and 3.2% Multiracial. This map presents the population of Jefferson County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Jefferson County is the 2nd most populous county of the 64 counties in Louisiana.

Jefferson County's White Population

208,385 residents of Jefferson County identify as White, or 47.3%. This makes the White share of the population of Jefferson County slightly less than the White share of the population of Louisiana (55.8% White). Of the 64 counties in Louisiana, Jefferson County is ranked #56 in terms of White residents as a share of the population.

Jefferson County is more White than neighboring Orleans County (31.6% White), and St. John the Baptist County (31.4% White). Jefferson County is less White than neighboring St. Charles County (62.2% White), Lafourche County (72.5% White), and Plaquemines County (58.5% White).

Jefferson County's Black Population

115,900 residents of Jefferson County identify as Black, or 26.3%. This makes the Black share of the population of Jefferson County roughly similar to the Black share of the population of Louisiana (31.2% Black). Of the 64 counties in Louisiana, Jefferson County is ranked #36 in terms of Black residents as a share of the population.

Jefferson County is more Black than neighboring St. Charles County (24.8% Black), Lafourche County (14.9% Black), and Plaquemines County (20.7% Black). Jefferson County is less Black than neighboring Orleans County (53.6% Black), and St. John the Baptist County (56.7% Black).

Jefferson County's Asian Population

19,528 residents of Jefferson County identify as Asian, or 4.4%. This makes the Asian share of the population of Jefferson County roughly similar to the Asian share of the population of Louisiana (1.8% Asian). Of the 64 counties in Louisiana, Jefferson County is ranked #2 in terms of Asian residents as a share of the population.

Jefferson County is more Asian than neighboring St. Charles County (1.1% Asian), Lafourche County (0.8% Asian), Orleans County (2.8% Asian), and St. John the Baptist County (0.7% Asian).

Jefferson County's Hispanic Population

79,057 residents of Jefferson County identify as Hispanic, or 17.9%. This makes the Hispanic share of the population of Jefferson County slightly larger than the Hispanic share of the population of Louisiana (6.9% Hispanic). Of the 64 counties in Louisiana, Jefferson County is ranked #1 in terms of Hispanic residents as a share of the population.

Jefferson County is more Hispanic than neighboring St. Charles County (7.9% Hispanic), Lafourche County (5.8% Hispanic), Orleans County (8.1% Hispanic), St. John the Baptist County (7.7% Hispanic), and Plaquemines County (9.5% Hispanic).

Jefferson County's Native American/Other Population

3,801 residents of Jefferson County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.9%. This makes the Native American/Other share of the population of Jefferson County roughly similar to the Native American/Other share of the population of Louisiana (1% Native American/Other). Of the 64 counties in Louisiana, Jefferson County is ranked #19 in terms of Native American/Other residents as a share of the population.

Jefferson County is more Native American/Other than neighboring St. Charles County (0.8% Native American/Other), Orleans County (0.8% Native American/Other), and St. John the Baptist County (0.6% Native American/Other). Jefferson County is less Native American/Other than neighboring Lafourche County (2.7% Native American/Other), and Plaquemines County (2.1% Native American/Other).

Jefferson County's Multiracial Population

14,110 residents of Jefferson County identify as Multiracial, or 3.2%. This makes the Multiracial share of the population of Jefferson County roughly similar to the Multiracial share of the population of Louisiana (3.4% Multiracial). Of the 64 counties in Louisiana, Jefferson County is ranked #29 in terms of Multiracial residents as a share of the population.

Jefferson County is more Multiracial than neighboring St. John the Baptist County (2.8% Multiracial). Jefferson County is less Multiracial than neighboring St. Charles County (3.3% Multiracial), Lafourche County (3.3% Multiracial), and Plaquemines County (4.8% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.