United States › Illinois › Franklin County COUNTY
Franklin County Illinois · 36,916 residents (2025 est.) · 409 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
With 37,323 people, Franklin County is a county in Illinois. 16% of adults hold a bachelor's degree, below the 36% national rate. Home values have more than doubled since 2000, reaching $89,000. The foreign-born share is 1%. At a median age of 43.4, this is an older place than the country as a whole. Households here earn about 32% less than in Illinois as a whole.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 43.4
US median: 38.9
Less educated
16% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 39,018 in 2000
36,916 in 2025 (Census Bureau estimate)
from 96 / sq mi in 2009
US average: 281
from 40.3 in 2000
US average: 38.9
Population, 1990 – 2024
37K 38K 39K 40K 41K 1990 2000 2010 2020 2024 Franklin County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $56,740
+10%inflation adjusted, since 2000
from $28,411 in 2000
US average: $82,259
from $15,407 in 2000
US average: $44,673
Households earning $100K+
from 15.3% in 2009
US average: 53.3%
from 16.2% in 2000
US average: 12.5%
from 0.413 in 2010
US average: 0.476
Workforce by industry, 2024
Professional, scientific, technical 5.5%
Agriculture, forestry, fishing 4.5%
Public administration 4.2%
Transportation & warehousing 2.6%
Arts, entertainment, food 1.4%
Education & health services 1%
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$89,000
+6%inflation adjusted, since 2000
from $45,900 in 2000
US average: $376,019
$803
+16%inflation adjusted, since 2000
from $380 in 2000
US average: $1,442
from 77.7% in 2000
25.9% rent
from 12.9% in 2009
US average: 10.0%
from 2.41 people in 2009
US average: 2.54
from 20.7% in 2009
US average: 22.9%
from 38.5% in 2009
US average: 47.4%
from 1.8 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 98.2%(38,323)
Hispanic / Latino 0.6%(249)
2024
White, non-Hispanic 94.1%(35,133)
from 7 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 23 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 27 more ancestry groups with data from 11.3% in 2000
US average: 35.6%
High school or higher
from 76.7% in 2000
US average: 89.6%
from 3.7% in 2000
US average: 14.0%
Section 06
Commute & transportation from 16.0 min in 2000
US average: 26.5
from 84.5% in 2009
US average: 68.9%
from 9.0% in 2009
US average: 8.5%
from 0.1% in 2009
US average: 3.2%
from 3.7% in 2009
US average: 15.0%
from 1.7% in 2009
US average: 2.4%
from 0.2% in 2009
US average: 0.4%
from 7.1% in 2009
US average: 8.3%
Section 07
Work & employment from 9.9% in 2011
US average: 5.2%
from 55.1% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 68.3% in 2020
US average: 74.6%
from 13.2% in 2009
US average: 13.1%
from 23.5% in 2009
US average: 42.5%
Section 08
People & community from 0.8% in 2009
US average: 14.1%
from 12.9% in 2009
US average: 6.2%
from 19.8% in 2012
US average: 13.3%
from 13.7% in 2013
US average: 8.4%
from 64.9% in 2017
US average: 91.0%
Computer in household
from 86.1% in 2020
US average: 95.5%
from 84.5% in 2020
US average: 87.7%
from 97.7% in 2016
US average: 77.7%
from 1.2% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 30.2%(4,537)
Women 15+
Never married 19.5%(3,028)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 13.7% in 2013
US average: 8.4%
from 48.1% in 2020
US average: 54.8%
Direct-purchase
from 13.7% in 2020
US average: 13.8%
from 23.5% in 2020
US average: 18.4%
from 30.5% in 2020
US average: 20.9%
VA health care
from 4.4% in 2020
US average: 2.2%
Any private
from 59.6% in 2020
US average: 67.1%
Any public
from 51.0% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 18.1%(431)
Gulf War (1990s) 16.6%(394)
Share of the 2,380 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Franklin County Head to head
Compare Franklin County to nearby counties FRANKLIN COUNTY VS
Williamson County
Income $65,604 +16%
Home value $156,400 +76%
Population 67,225 +82%
SEE FULL COMPARISON →
FRANKLIN COUNTY VS
Jefferson County
Income $63,118 +11%
Home value $126,000 +42%
Population 36,147 −2%
SEE FULL COMPARISON →
FRANKLIN COUNTY VS
Hamilton County
Income $65,746 +16%
Home value $113,700 +28%
Population 7,859 −79%
SEE FULL COMPARISON →
FRANKLIN COUNTY VS
Perry County
Income $62,118 +9%
Home value $112,600 +27%
Population 20,160 −45%
SEE FULL COMPARISON →
Frequently asked
How many people live in Franklin County, Illinois? Franklin County, Illinois has about 37,323 residents according to the 2024 American Community Survey.
What is the median household income in Franklin County, Illinois? The typical household in Franklin County, Illinois earns about $56,740 a year. Half of households make more than that, and half make less.
Is Franklin County, Illinois expensive? In Franklin County, Illinois, the median home is worth about $89,000, and the typical rent is about $803 a month.
How educated are people in Franklin County, Illinois? About 15.8% of adults age 25 and over in Franklin County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Franklin County, Illinois? About 17.5% of people in Franklin County, Illinois live below the federal poverty line.
Has Franklin County, Illinois grown since 1990? Yes, Franklin County, Illinois has shrunk since 1990. The population has lost about 2,996 residents, a change of about -7 percent over that period.
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