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 distinguished by its share of foreign-born residents, 8.7% of the population. Jefferson County is a county in Mississippi with a population of 7,127.
Household earnings sit near the bottom of the range at $36,207, below the US median of $78,538. Poverty is among the highest of comparable US counties: 27.2%, above the national 12.4%. Home prices sit near the bottom of the range at $81,400, with typical rent around $444.
Roughly 19.9% of adults have a bachelor’s, below the national 35.0%. Just 4.0% of workers are home-based, below the national 14.0%, and the average commute runs about 27 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.