Jefferson County, Mississippi

County in MS, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

7,068

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

43.1

years ∙ half population younger than 43.1, half older

Diversity Index

29.5%

chance two random people differ in race and ethnicity

Nativity

0.2%

foreign-born population

99.8%Native

0.2% Foreign-born

Geographic Context

Location, size, and surroundings

About

Jefferson County is a county in Mississippi, United States.

Location

County in MS, US

Co-ordinates

DEC31.733633° N, 91.043878° W

DMS31° 44′ 01.08″ N, 91° 02′ 37.96″ W

Population Density & area

13.59/sq mi (5.25/km²)

Total Area

527.2 sq mi (1,365.6 km²)

Land Area

519.9 sq mi (1,346.6 km²) · 98.6%

Water Area

7.3 sq mi (19 km²) · 1.4%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

49.3% male

Male 49.3%

Female 50.7%

males per 100 females

Jefferson County 97.1

Mississippi 94.2

United States 98

Nativity

0.2%

foreign-born population

99.8%Native

0.2% Foreign-born

% Foreign-born

Jefferson County 0.2%

Mississippi 2.4%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

43.1

years ∙ half population younger than 43.1, half older

Jefferson County

43.1

Mississippi

38.6

United States

38.9

Dependency ratio

68.8

dependents per 100 working-age adults

Jefferson County 68.8

Mississippi 68

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Jefferson County	Mississippi	United States
Age Group
Children (Under 18)	20.6%	23.3%	22%
Working age (18-64)	59.2%	59.5%	60.8%
Senior (65+)	20.2%	17.2%	17.2%
Dependency ratio
Total dependency ratio	68.8	68	64.4
Child dependency ratio	34.8	39.2	36.1
Old-age dependency ratio	34.1	28.8	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

13.1%

Black

82.9%

Asian

0.5%

Hispanic

Other

1.5%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

29.5%

chance two random people differ in race and ethnicity

Jefferson County 29.5%

Mississippi 56.1%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Jefferson County population

	Jefferson County	Mississippi	United States
Hispanic or Latino	2%	3.7%	19.3%
Mexican	0.1%	2%	11.3%
Puerto Rican	0%	0.3%	1.8%
Cuban	0%	0.1%	0.8%
Other Hispanic / Latino	2%	1.3%	5.5%
Not Hispanic or Latino	98%	96.3%	80.7%
One race	96.6%	93.3%	76.4%
White	13.1%	55.2%	57.4%
Black or African American	82.9%	36.3%	11.9%
American Indian and Alaska Native	0.1%	0.4%	0.5%
Asian	0.5%	1%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0%	0.3%	0.6%
Two or more races (Multiracial)	1.4%	3%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

69.4% family

Family 69.4%

Non family 30.6%

% family households

Jefferson County 69.4%

Mississippi 65.3%

United States 64.2%

Average household size

2.69

persons per household

Jefferson County

2.69

Mississippi

2.49

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Jefferson County population

	Jefferson County	Mississippi	United States
Total households	2,494	1,145,431	129,227,496
Average houshold size	2.69	2.49	2.53
Family households	1,730	747,604	82,990,528
Average family size	3.33	3.12	3.14
Married couple family	777	498,140	60,637,388
Other families	953	249,464	22,353,140
Male householder	225	54,654	6,572,819
Female householder	728	194,810	15,780,321
Non-family households	764	397,827	46,236,968
One-person households	733	346,124	37,140,836
Male householder	341	158,618	16,871,444
Senior (65+) living alone	84	50,989	5,225,110
Female householder	392	187,506	20,269,392
Senior (65+) living alone	330	95,927	10,089,070
Other living arrangements	31	51,703	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

3,390

housing units

Jefferson County 3,390

Mississippi 1,341,114

United States 143,775,355

Occupancy status

73.6% occupied

Occupied 73.6%

Vacant 26.4%

vacancy rate

Jefferson County 26.4%

Mississippi 14.6%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

52.2%

Single family houses

52.2%

Apartments in multi-unit structures

11.2%

Mobile homes

36.7%

Boat, RV, van, etc

Median Year Built

1986

Half of houses were built before 1986, and half after.

Historic ∙ 1939 or earlier

2.6%

Postwar & mid-century ∙ 1940 - 1969

9.9%

Late 20th century ∙ 1970 - 1999

63.6%

Modern ∙ 2000 or later

23.8%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Jefferson County	Mississippi	United States
Rooms per unit
Median rooms	5.5	5.7	5.5
1–3 rooms	8.7%	9.4%	15.1%
4–6 rooms	58.5%	56.6%	51.6%
7+ rooms	32.8%	34%	33.4%
Bedrooms
No bedroom / studio	0%	1.6%	2.9%
1 bedroom	8.4%	6.1%	10.9%
2 bedrooms	15%	20.8%	25%
3 bedrooms	54.2%	51.6%	38.7%
4+ bedrooms	22.4%	19.9%	22.4%
At a glance
Median year built	1986	1987	1981
Total housing units	3,390	1,341,114	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

82.9% owners

Renter-occupied 17.1%

Owner-occupied 82.9%

homeownership rate

Jefferson County 82.9%

Mississippi 70%

United States 65.2%

Average household size

2.69

Owner-occupied

2.66

Renter-occupied

owner-occupied average size

Jefferson County 2.69

Mississippi 2.55

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Jefferson County	Mississippi	United States
Total occupied units	2,494	1,145,431	129,227,496
Year moved in
2020 or later	10.4%	21.6%	24.8%
2010 to 2019	24.1%	37.9%	39.6%
2000 to 2009	20.5%	17.6%	16.4%
1999 or earlier	45%	22.9%	19.1%
Occupants per room
1.00 or fewer	95.9%	97.8%	96.6%
1.01 to 1.50	3.6%	1.6%	2.2%
1.51 or more	0.5%	0.6%	1.2%
Vehicles availability
No vehicles	4.1%	6.3%	8.4%
1 vehicle	38.3%	32.1%	33.1%
2 vehicles	34.7%	36.1%	36.6%
3 or more vehicles	22.9%	25.4%	21.9%
House heating fuel used
Gas	38.1%	39.2%	51.4%
Electricity	60.9%	58.9%	41.3%
Solar	0%	0%	0.3%
Fuel oil, kerosene etc	0%	0.1%	3.9%
All other fuels	1%	1%	2%
No fuel used	0%	0.7%	1.2%
Selected characteristics
Lacking complete plumbing	0.4%	0.5%	0.4%
Lacking complete kitchen	0%	0.7%	0.8%
No telephone service available	0%	1.2%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$81,300

owner-occupied units

Median value(USD)

Jefferson County

$81,300

Mississippi

$169,800

United States

$332,700

Housing Cost Burden

30%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

30%

Owners without a mortgage

20.6%

Renters

48%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Jefferson County	Mississippi	United States
Property value
Median Value	$81,300	$169,800	$332,700
Under $100,000	64.9%	29.9%	11.4%
$100,000 - $200,000	25.2%	27.9%	15.8%
$200,000 - $300,000	7.1%	20.3%	17.8%
$300,000 - $500,000	0.7%	16.3%	26.9%
$500,000 - $1,000,000	1.6%	4.6%	20.9%
$1,000,000 and more	0.6%	0.9%	7.1%
Owner-occupied households
With a mortgage	17.9%	49.4%	60.6%
Without a mortgage	82.1%	50.6%	39.4%
Median monthly owner costs
With a mortgage	$1,040	$1,394	$1,963
Without a mortgage	$380	$432	$638
Gross rent
Median rent	$448	$954	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

13.4%

of adults 25+ with a bachelor's degree or higher

Jefferson County 13.4%

Mississippi 25.1%

United States 35.7%

Adults without a high school diploma

18.2%

of adults (25+) without a high school diploma

Jefferson County 18.2%

Mississippi 12.8%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

1,733

population (age 3+) enrolled in school

Nursery / Preschool

3.8%

K–12

71.3%

College / Undergraduate

22.9%

Graduate / Professional

College-going rate (18-24 yr olds)

37.2%

of 18-24-year-olds in college or graduate school

Jefferson County

37.2%

Mississippi

39.5%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Jefferson County	Mississippi	United States
Total enrolled (age 3+)	1,733	726,919	80,089,790
Nursery / preschool	3.8%	5.9%	5.7%
K–12	71.3%	69.3%	67.6%
Kindergarten	2%	5%	5%
Elementary: Grades 1–4	22.4%	20.8%	19.8%
Elementary: Grades 5–8	24.1%	21.7%	21%
High School: Grades 9–12	22.8%	21.8%	21.7%
College or graduate school	24.9%	24.8%	26.7%
College, undergraduate	22.9%	19.9%	21%
Graduate, professional school	2%	4.9%	5.8%
College-going rate · 18-24 yr olds	37.2%	39.5%	40.9%
School type
Public school	94.6%	83.5%	82%
Private school	5.4%	16.5%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

4,841

population 25 years and over

Total adults (25+)

Less than 9th grade

4.4%

9th-12th, no diploma

13.8%

HS graduate

40.6%

Some college no degree

19.8%

Associates degree

7.9%

Bachelors degree

7.9%

Graduate or professional degree

5.6%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

65.9% · 34.1%

9th-12th, no diploma

67.6% · 32.4%

HS graduate

44.6% · 55.4%

Some college no degree

53.3% · 46.7%

Associates degree

53.8% · 46.2%

Bachelors degree

23.9% · 76.1%

Graduate or professional degree

18.1% · 81.9%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Jefferson County	Mississippi	United States
Population (25+)	4,841	1,972,266	230,807,303
Less than 9th grade	4.4%	4.3%	4.7%
9th–12th, no diploma	13.8%	8.5%	5.7%
High school diploma or GED	40.6%	29.9%	26%
Some college, no degree	19.8%	21.2%	19.1%
Associate's degree	7.9%	10.9%	8.8%
Bachelor's degree or higher	13.4%	25.1%	35.7%
Bachelor's degree	7.9%	15.3%	21.6%
Graduate or professional	5.6%	9.9%	14.1%
High School or higher	81.8%	87.1%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$32,155

Median earnings for adults 25+, by level

Less than HS graduate

$26,750

HS graduate

$29,886

Some college or associates

$32,917

Bachelors degree

$45,347

Graduate or professional degree

$47,031

Poverty Rate

8.6%

for ages 25+, with bachelors degree or higher

Less than HS graduate

47.4%

HS graduate

24.1%

Some college or associates

17.6%

Bachelors degree or higher

8.6%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Jefferson County	Mississippi	United States
Median earnings
Population 25+, with earnings	$32,155	$42,912	$52,696
Less than high school graduate	$26,750	$29,259	$32,485
High school graduate (includes equivalency)	$29,886	$35,321	$40,153
Some college or associate's degree	$32,917	$40,529	$47,260
Bachelor's degree	$45,347	$53,681	$70,044
Graduate or professional degree	$47,031	$65,353	$90,720
Poverty rates
Less than high school graduate	47.4%	32.8%	24.2%
High school graduate (includes equivalency)	24.1%	20%	14.4%
Some college or associate's degree	17.6%	13.2%	9.8%
Bachelor's degree or higher	8.6%	5.7%	4.5%

Insights for Jefferson County, by topic

Income By year By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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