Sesser, IL

City in Franklin County, IL, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

2,023

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

Median Age

38.3

years ∙ half population younger than 38.3, half older

Diversity Index

12.6%

chance two random people differ in race and ethnicity

Nativity

1.8%

foreign-born population

98.2%Native

1.8% Foreign-born

Geographic Context

Location, size, and surroundings

About

Sesser is a city within Franklin County, Illinois, United States.

Location

City in Franklin County, IL, US

Co-ordinates

DEC38.090336° N, 89.050813° W

DMS38° 05′ 25.21″ N, 89° 03′ 02.93″ W

Population Density & area

1,927/sq mi (743.8/km²)

Total Area

1.05 sq mi (2.72 km²)

Land Area

1.05 sq mi (2.72 km²) · 99.93%

Water Area

0 sq mi (0 km²) · 0.07%

Demographics & Living

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

Population Composition

Key characteristics of the population

Sex Distribution

49% male

Male 49%

Female 51%

males per 100 females

Sesser 96.2

Franklin County 98.7

Illinois 97.7

Nativity

1.8%

foreign-born population

98.2%Native

1.8% Foreign-born

% Foreign-born

Sesser 1.8%

Franklin County 1.2%

Illinois 14.7%

Age Distribution

How the population is spread across age groups

Median Age

38.3

years ∙ half population younger than 38.3, half older

Sesser

38.3

Franklin County

43.4

Illinois

Dependency ratio

66.8

dependents per 100 working-age adults

Sesser 66.8

Franklin County 75.7

Illinois 63.5

AGE DISTRIBUTION

Distribution of age group

Median age

	Sesser	Franklin County	Illinois
Age Group
Children (Under 18)	23.6%	22.1%	21.8%
Working age (18-64)	59.9%	56.9%	61.2%
Senior (65+)	16.5%	21%	17%
Dependency ratio
Total dependency ratio	66.8	75.7	63.5
Child dependency ratio	39.3	38.8	35.7
Old-age dependency ratio	27.5	36.9	27.8

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

93.4%

Black

Asian

2.7%

Hispanic

2.2%

Other

1.7%

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

12.6%

chance two random people differ in race and ethnicity

Sesser 12.6%

Franklin County 11.3%

Illinois 60.5%

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 Sesser population

	Sesser	Franklin County	Illinois
Hispanic or Latino	2.2%	2%	18.8%
Mexican	2.2%	1.5%	14.4%
Puerto Rican	0%	0.1%	1.6%
Cuban	0%	0%	0.3%
Other Hispanic / Latino	0%	0.4%	2.5%
Not Hispanic or Latino	97.8%	98%	81.2%
One race	96.4%	95.2%	77.8%
White	93.4%	94.1%	58.1%
Black or African American	0%	0.4%	13.3%
American Indian and Alaska Native	0%	0.1%	0.1%
Asian	2.7%	0.4%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0.3%	0.2%	0.4%
Two or more races (Multiracial)	1.4%	2.8%	3.4%

Household & Families Composition

Household size, type, and family structure

Household structure

73.9% family

Family 73.9%

Non family 26.1%

% family households

Sesser 73.9%

Franklin County 62.5%

Illinois 62.2%

Average household size

2.6

persons per household

Sesser

2.6

Franklin County

2.28

Illinois

2.46

Household & Family COMPOSITION

Households

Percentage of Sesser population

	Sesser	Franklin County	Illinois
Total households	778	16,137	5,036,449
Average houshold size	2.6	2.28	2.46
Family households	575	10,091	3,130,978
Average family size	2.98	2.87	3.14
Married couple family	399	7,060	2,282,435
Other families	176	3,031	848,543
Male householder	51	906	248,521
Female householder	125	2,125	600,022
Non-family households	203	6,046	1,905,471
One-person households	162	5,317	1,569,881
Male householder	87	2,742	712,191
Senior (65+) living alone	45	1,216	210,051
Female householder	75	2,575	857,690
Senior (65+) living alone	55	1,493	417,870
Other living arrangements	41	729	335,590

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

903

housing units

Sesser 903

Franklin County 18,462

Illinois 5,457,452

Occupancy status

86.2% occupied

Occupied 86.2%

Vacant 13.8%

vacancy rate

Sesser 13.8%

Franklin County 12.6%

Illinois 7.7%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

79.2%

Single family houses

79.2%

Apartments in multi-unit structures

12.5%

Mobile homes

8.3%

Boat, RV, van, etc

Median Year Built

1956

Half of houses were built before 1956, and half after.

Historic ∙ 1939 or earlier

29.7%

Postwar & mid-century ∙ 1940 - 1969

38.9%

Late 20th century ∙ 1970 - 1999

21%

Modern ∙ 2000 or later

10.4%

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

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Sesser	Franklin County	Illinois
Rooms per unit
Median rooms	5.6	5.5	5.6
1–3 rooms	6%	8.6%	14.6%
4–6 rooms	67.8%	61.6%	50.9%
7+ rooms	26.3%	30%	34.6%
Bedrooms
No bedroom / studio	0%	1.2%	3.1%
1 bedroom	5%	8.5%	11.5%
2 bedrooms	41.7%	36.8%	27.7%
3 bedrooms	44.6%	43%	35.8%
4+ bedrooms	8.6%	10.5%	21.7%
At a glance
Median year built	1956	1964	1971
Total housing units	903	18,462	5,457,452

Occupancy Profile

Who is inside and how they use it

Homeownership

71.7% owners

Renter-occupied 28.3%

Owner-occupied 71.7%

homeownership rate

Sesser 71.7%

Franklin County 74.1%

Illinois 67.1%

Average household size

2.55

Owner-occupied

2.74

Renter-occupied

owner-occupied average size

Sesser 2.55

Franklin County 2.3

Illinois 2.62

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Sesser	Franklin County	Illinois
Total occupied units	778	16,137	5,036,449
Year moved in
2020 or later	14.7%	20.7%	23.3%
2010 to 2019	40.7%	34.5%	38.1%
2000 to 2009	24.6%	19.2%	17.3%
1999 or earlier	19.9%	25.6%	21.3%
Occupants per room
1.00 or fewer	98.1%	98.2%	97.5%
1.01 to 1.50	1.9%	1.3%	1.6%
1.51 or more	0%	0.5%	0.8%
Vehicles availability
No vehicles	3.6%	6.3%	11%
1 vehicle	33.5%	34%	35.7%
2 vehicles	42.7%	35.1%	35.1%
3 or more vehicles	20.2%	24.6%	18.3%
House heating fuel used
Gas	40.7%	48.1%	79.5%
Electricity	57.7%	49.1%	18.6%
Solar	0%	0.1%	0.1%
Fuel oil, kerosene etc	0%	0.1%	0.1%
All other fuels	0.3%	2.3%	0.8%
No fuel used	1.3%	0.4%	0.8%
Selected characteristics
Lacking complete plumbing	0%	0.4%	0.3%
Lacking complete kitchen	0%	1.2%	0.8%
No telephone service available	1%	1.7%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$82,300

owner-occupied units

Median value(USD)

Sesser

$82,300

Franklin County

$89,000

Illinois

$263,300

Housing Cost Burden

13.2%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

13.2%

Owners without a mortgage

5.4%

Renters

51.5%

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

	Sesser	Franklin County	Illinois
Property value
Median Value	$82,300	$89,000	$263,300
Under $100,000	63.8%	54.7%	13.7%
$100,000 - $200,000	23%	26.6%	21.5%
$200,000 - $300,000	9.3%	10.5%	22.3%
$300,000 - $500,000	3.9%	6%	27.7%
$500,000 - $1,000,000	0%	1.3%	12.1%
$1,000,000 and more	0%	0.9%	2.7%
Owner-occupied households
With a mortgage	40.5%	40.8%	60.8%
Without a mortgage	59.5%	59.2%	39.2%
Median monthly owner costs
With a mortgage	$1,175	$1,171	$1,987
Without a mortgage	$423	$463	$792
Gross rent
Median rent	$726	$803	$1,274

Education Profile

How educated is the community and how education pays off

Adults with a college degree

18%

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

Sesser 18%

Franklin County 15.8%

Illinois 37.8%

Adults without a high school diploma

6.2%

of adults (25+) without a high school diploma

Sesser 6.2%

Franklin County 10.4%

Illinois 9.6%

School Enrollment

Who is enrolled in school and at what level

School enrollment

592

population (age 3+) enrolled in school

Nursery / Preschool

8.1%

K–12

65.9%

College / Undergraduate

19.6%

Graduate / Professional

6.4%

College-going rate (18-24 yr olds)

42.3%

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

Sesser

42.3%

Franklin County

25.9%

Illinois

41.4%

Enrollment & school type

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

Population 3+ currently enrolled in a school

	Sesser	Franklin County	Illinois
Total enrolled (age 3+)	592	7,693	3,051,569
Nursery / preschool	8.1%	7.3%	6.3%
K–12	65.9%	76.8%	67.3%
Kindergarten	6.1%	6.1%	4.9%
Elementary: Grades 1–4	19.1%	19.5%	19.5%
Elementary: Grades 5–8	20.4%	24.8%	20.8%
High School: Grades 9–12	20.3%	26.5%	22.1%
College or graduate school	26%	15.8%	26.4%
College, undergraduate	19.6%	12.7%	19.8%
Graduate, professional school	6.4%	3.2%	6.6%
College-going rate · 18-24 yr olds	42.3%	25.9%	41.4%
School type
Public school	89.5%	87.7%	80.5%
Private school	10.5%	12.3%	19.5%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

1,331

population 25 years and over

Total adults (25+)

Less than 9th grade

0.5%

9th-12th, no diploma

5.7%

HS graduate

25.9%

Some college no degree

40%

Associates degree

9.9%

Bachelors degree

13.1%

Graduate or professional degree

4.8%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

0% · 100%

9th-12th, no diploma

71.1% · 28.9%

HS graduate

38.3% · 61.7%

Some college no degree

45.9% · 54.1%

Associates degree

46.2% · 53.8%

Bachelors degree

69.7% · 30.3%

Graduate or professional degree

12.5% · 87.5%

Educational Attainment Overview

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

Highest credential completed · adults 25+

	Sesser	Franklin County	Illinois
Population (25+)	1,331	26,433	8,767,004
Less than 9th grade	0.5%	3.2%	4.6%
9th–12th, no diploma	5.7%	7.2%	5%
High school diploma or GED	25.9%	32.8%	25.1%
Some college, no degree	40%	27.4%	19.2%
Associate's degree	9.9%	13.7%	8.3%
Bachelor's degree or higher	18%	15.8%	37.8%
Bachelor's degree	13.1%	10.7%	22.6%
Graduate or professional	4.8%	5.1%	15.3%
High School or higher	93.8%	89.6%	90.5%

Earnings by education level

percentage as applicable

Median Earnings

$36,135

Median earnings for adults 25+, by level

Less than HS graduate

$20,000

HS graduate

$28,333

Some college or associates

$35,625

Bachelors degree

$45,833

Graduate or professional degree

$70,125

Poverty Rate

20.9%

for ages 25+, with bachelors degree or higher

Less than HS graduate

HS graduate

32.5%

Some college or associates

8.6%

Bachelors degree or higher

20.9%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Sesser	Franklin County	Illinois
Median earnings
Population 25+, with earnings	$36,135	$42,394	$55,582
Less than high school graduate	$20,000	$32,826	$34,655
High school graduate (includes equivalency)	$28,333	$38,877	$40,965
Some college or associate's degree	$35,625	$41,886	$47,813
Bachelor's degree	$45,833	$54,082	$73,326
Graduate or professional degree	$70,125	$67,961	$91,623
Poverty rates
Less than high school graduate	0%	33.6%	21.6%
High school graduate (includes equivalency)	32.5%	19.7%	14.4%
Some college or associate's degree	8.6%	10.8%	9.9%
Bachelor's degree or higher	20.9%	9.7%	4.5%

Insights for Sesser, by topic

Income By year By race 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.

Cite this page

Citation style

Url to be used as reference

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.