Jefferson County, Mississippi
Located in Mississippi, Jefferson County has a population of 7,068 residents and a median age of 43.1 years, making it the #2,731 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 32.5%. The median home value is $81,300, and the median household income is $38,305, which is 49% below the national median.
Demographics
Jefferson County has a population of 7,068, making it the #2,731 most populous county in the US. The median age is 43.1 years, which is 10.8% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Jefferson County is $38,305, ranking #3,093 out of 3,222 counties — 49.0% below the national median. The poverty rate is 32.5% and unemployment stands at 1.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Jefferson County is $81,300 (-71.2% vs national). Renters pay a median of $448/mo and the homeownership rate is 82.9%.
Median Home Value Trend
Rankings →Household Type
Education
In Jefferson County, 13.4% of adults age 25+ hold a bachelor's degree or higher, which is 60.1% below the national average, ranking #2,991 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Jefferson County is 71.8 years. 30.6% of adults report poor or fair health and 14.7% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
21.8% of adults in Jefferson County smoke , 52.2% are obese , and 12.1% report excessive drinking.
Adult Smoking Trend
Safety
The homicide rate in Jefferson County is 20.0 per 100,000 . Motor vehicle deaths occur at a rate of 50.1 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
40.4% of children in Jefferson County live in poverty . The teen birth rate is 27.7 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Jefferson County is 70.9%. The mean commute time is 31.8 min, which is 15.4% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Jefferson County voted Democratic with a margin of 66.3%. The vote was 82.7% Dem / 16.4% Rep. Compared to 2020, the margin shifted 5.2 toward Republicans .
Vote Share Over Time
About Jefferson County, Mississippi
Jefferson County, Mississippi has a total population of 7,068, making it the 2,731st most populous county in the United States. The median age in Jefferson County is 43.1 years, which is 10.8% above the national median of 38.9 years.
The median household income in Jefferson County is $38,305, which ranks #3,093 of 3,222 counties nationwide. This is 49.0% below the national median of $75,149. The poverty rate is 32.5%, higher than the national rate of 12.6%. The unemployment rate stands at 1.8%.
The median home value in Jefferson County is $81,300, 71.2% below the national median. Renters in Jefferson County pay a median gross rent of $448 per month. The homeownership rate is 82.9%, compared to the national rate of 64.4%.
In Jefferson County, 13.4% of residents aged 25 and older hold a bachelor's degree or higher, 60.1% below the national average of 33.7%. Health insurance coverage stands at 89.3% of the population. The average commute time for workers is 31.8 min.
Jefferson County is a diverse community. The largest racial or ethnic group is Black (non-Hispanic) at 82.9% of the population, followed by White (non-Hispanic) (13.1%) and Hispanic or Latino (2.0%).
All data for Jefferson County, Mississippi comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.