Jefferson County, Mississippi Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 79th-largest in Mississippi
The population of Jefferson County, Mississippi is 7,127 as of the 2023 American Community Survey, making it the 79th-largest county in Mississippi. The median household income is $36,207, the median home value is $81,400, and the median age is 43.0.
The population of Jefferson County has declined 10.7% since 2010 (7,723 → 6,900), a -0.80% annualized rate.
7,127
Population
-0.80%
Annual growth
14
People / sq mi
$36,207
Median Income
$81,400
Median Home Value
Jefferson County covers 520 sq mi of land at 13.7 people per square mile.
About Jefferson County, MS
Jefferson County is a county in Mississippi with a population of 7,127. It ranks #79 among counties in Mississippi by population. The median age is 43.0, older than the national median. The population is 48.4% male and 51.6% female.
The median household income in Jefferson County is $36,207, below the US median of $74,580. 27.2% of residents live below the federal poverty level. Home values sit at a median of $81,400, with monthly rent averaging $444. The homeownership rate of 78.8% is higher than the national rate of 64.8%.
Educational attainment in Jefferson County reflects 19.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 4.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.6 minutes each way.
Jefferson County Population History (2010-2024)
The county of Jefferson County had a population of 7,723 in 2010 and 6,900 in 2024, a -10.7% growth over 14 years. The peak was 7,723 in 2010. Average annual growth rate: -0.79%.
6,900
Population (2024)
7,723
Population (2010)
7,723
Peak (2010)
-0.79%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 7,723 |
| 2011 | 7,599 |
| 2012 | 7,683 |
| 2013 | 7,658 |
| 2014 | 7,584 |
| 2015 | 7,507 |
| 2016 | 7,302 |
| 2017 | 7,231 |
| 2018 | 7,092 |
| 2019 | 7,022 |
| 2020 | 7,245 |
| 2021 | 7,137 |
| 2022 | 7,086 |
| 2023 | 6,974 |
| 2024 | 6,900 |
Race & Ethnicity
| White | 13.2% |
| Black or African American | 81.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 4.6% |
| Two or More Races | 0.0% |
Age & Sex
43.0
Median Age
51.6%
Female
48.4%
Male
19.3%
Age 65+
Age Distribution
Children (under 15): 17.1% · Seniors (65+): 19.3%
Income & Poverty
| Median household income | $36,207$-18,708 vs state |
| Mean household income | $53,294 |
| Per-capita income | $20,430 |
| Poverty rate | 27.2%+12.9% vs state |
| Unemployment rate | 2.0% |
| Employment-to-population | 38.2% |
Top Industries by Employment
The largest employment sector in Jefferson County is professional & business services, accounting for 38.7% of workers.
How residents commute
0.1%
Drive alone
0.0%
Carpool
89.2%
Public transit
4.0%
Work from home
26.6 min
Avg commute
Housing
$81,400$-80,000 vs state
Median home value
$444
Median rent
78.8%
Homeownership rate
3,383
Total housing units
70.1%
Occupied
29.9%
Vacant
21.2%
Renter-occupied
Social & access
91.3%
With health insurance
88.1%
With broadband internet
8.7%
Foreign-born
4.3%
Veterans (18+)
14.8%
With a disability
99.1%
Speak language other than English at home
Education
80.8%
High School+
19.9%
Bachelor's+
Largest cities in Mississippi
Other counties in Mississippi
Part of Mississippi
Metro areas in Mississippi
County rankings
Frequently Asked Questions
Jefferson County, Mississippi has a population of 7,127 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 79th-largest county in Mississippi. Population density is 14 people per square mile.
The population of Jefferson County has declined 10.7% since 2010 (7,723 → 6,900), a -0.80% annualized rate.
The median household income in Jefferson County, Mississippi is $36,207, with mean (average) household income of $53,294 and per-capita income of $20,430. 27.2% of residents live below the federal poverty level.
In Jefferson County, the largest racial and ethnic groups are Black or African American (81.2%), White (13.2%), Hispanic or Latino (4.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jefferson County, Mississippi is 43.0 years. Residents are 51.6% female and 48.4% male.
The median home value in Jefferson County is $81,400 and median monthly rent is $444. 78.8% of occupied housing units are owner-occupied. The county has 3,383 total housing units, 29.9% of which are vacant.
The largest employment sector in Jefferson County, Mississippi is professional, scientific, and management services, employing 38.7% of workers. The unemployment rate is 2.0%.
Jackson is among the largest cities associated with Jefferson County, Mississippi, with a population of 149,827.
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Statewide data for Mississippi
Population, race, income, age, and trends across Mississippi
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.