United States › Illinois › Frankfort CITY
Frankfort Illinois · 21,365 residents (2025 est.) · 15.6 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
Frankfort is home to 20,651 people in Illinois. That is roughly 85% ahead of the Illinois median. The population has more than doubled since 2000, adding 10,260 people. 95% of homes are owner-occupied. This is an unusually credentialed place: 59% of adults have a four-year degree. The median household earns $154,375, about 88% above the national median.
At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 42.2
US median: 38.9
More educated
59% 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 10,391 in 2000
21,365 in 2025 (Census Bureau estimate)
1,323 / sq mi
+21%since 2009
from 1,092 / sq mi in 2009
US average: 281
from 39.9 in 2000
US average: 38.9
Population, 1990 – 2024
6K 10K 14K 18K 22K 1990 2000 2010 2020 2024 Frankfort Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $154,375
+2%inflation adjusted, since 2000
from $83,055 in 2000
US average: $82,259
from $33,968 in 2000
US average: $44,673
Households earning $100K+
from 73.9% in 2009
US average: 53.3%
from 2.3% in 2000
US average: 12.5%
from 0.369 in 2010
US average: 0.476
Workforce by industry, 2024
Public administration 7.2%
Professional, scientific, technical 4%
Transportation & warehousing 2.5%
Arts, entertainment, food 1.7%
Education & health services 1.3%
Agriculture, forestry, fishing 0.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$481,200
+8%inflation adjusted, since 2000
from $245,000 in 2000
US average: $376,019
$2,442
+90%inflation adjusted, since 2000
from $705 in 2000
US average: $1,442
from 92.1% in 2000
5.2% rent
from 4.3% in 2009
US average: 10.0%
from 3.19 people in 2009
US average: 2.54
from 34.8% in 2009
US average: 22.9%
from 22.1% in 2009
US average: 47.4%
from 3.5 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 92.3%(9,592)
Hispanic / Latino 2.3%(240)
2024
White, non-Hispanic 75.1%(15,512)
Hispanic / Latino 7%(1,453)
from 33 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 34 more ancestry groups with data from 40.7% in 2000
US average: 35.6%
High school or higher
from 94.9% in 2000
US average: 89.6%
from 16.2% in 2000
US average: 14.0%
Section 06
Commute & transportation from 24.9 min in 2000
US average: 26.5
from 79.1% in 2009
US average: 68.9%
from 6.4% in 2009
US average: 8.5%
from 8.4% in 2009
US average: 3.2%
from 5.1% in 2009
US average: 15.0%
from 0.3% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 1.6% in 2009
US average: 8.3%
Section 07
Work & employment from 4.5% in 2011
US average: 5.2%
from 68.2% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 77.0% in 2020
US average: 74.6%
from 16.5% in 2009
US average: 13.1%
from 55.1% in 2009
US average: 42.5%
Section 08
People & community from 4.3% in 2009
US average: 14.1%
from 10.0% in 2009
US average: 6.2%
from 6.0% in 2012
US average: 13.3%
from 2.7% in 2013
US average: 8.4%
from 91.8% in 2017
US average: 91.0%
Computer in household
from 97.6% in 2020
US average: 95.5%
from 92.7% in 2020
US average: 87.7%
from 94.1% in 2016
US average: 77.7%
from 1.1% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 24.3%(1,905)
Women 15+
Never married 24.6%(2,039)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 2.7% in 2013
US average: 8.4%
from 80.3% in 2020
US average: 54.8%
Direct-purchase
from 14.0% in 2020
US average: 13.8%
from 15.5% in 2020
US average: 18.4%
from 2.9% in 2020
US average: 20.9%
VA health care
from 0.8% in 2020
US average: 2.2%
Any private
from 90.7% in 2020
US average: 67.1%
Any public
from 18.0% 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) 22.7%(139)
Gulf War (1990s) 25.4%(156)
Share of the 613 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.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Frankfort Head to head
Compare Frankfort to nearby cities FRANKFORT VS
Mokena
Income $123,889 −20%
Home value $401,400 −17%
Population 19,897 −7%
SEE FULL COMPARISON →
FRANKFORT VS
Frankfort Square
Income $126,897 −18%
Home value $305,800 −36%
Population 9,560 −55%
SEE FULL COMPARISON →
FRANKFORT VS
New Lenox
Income $140,865 −9%
Home value $399,900 −17%
Population 28,893 +35%
SEE FULL COMPARISON →
FRANKFORT VS
Tinley Park
Income $105,189 −32%
Home value $299,900 −38%
Population 55,140 +158%
SEE FULL COMPARISON →
Frequently asked
How many people live in Frankfort, Illinois? Frankfort, Illinois has about 20,651 residents according to the 2024 American Community Survey.
What is the median household income in Frankfort, Illinois? The typical household in Frankfort, Illinois earns about $154,375 a year. Half of households make more than that, and half make less.
Is Frankfort, Illinois expensive? In Frankfort, Illinois, the median home is worth about $481,200, and the typical rent is about $2,442 a month.
How educated are people in Frankfort, Illinois? About 59.3% of adults age 25 and over in Frankfort, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Frankfort, Illinois? About 3.2% of people in Frankfort, Illinois live below the federal poverty line.
Has Frankfort, Illinois grown since 1990? Yes, Frankfort, Illinois has grown since 1990. The population has added about 13,471 residents, a change of about 188 percent over that period.
Keep going
Explore from here 