United States › Illinois › Troy CITY
Troy Illinois · 11,893 residents (2025 est.) · 5.69 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
Troy is home to 11,647 people in Illinois. That puts it in the top 5% of US cities for household income. The population is up 37% since 2000. That is roughly 35% ahead of the Illinois median. The foreign-born share is 2%. The poverty rate is 2.0%, under the national 12.5%.
At a glance
Wealthier
above the US median
US median: $82,259
Younger
median age 35.2
US median: 38.9
More educated
45% hold a bachelor's degree
US average: 36%
Less affordable
home values up 48%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 8,524 in 2000
11,893 in 2025 (Census Bureau estimate)
2,045 / sq mi
+16%since 2009
from 1,761 / sq mi in 2009
US average: 281
from 32.9 in 2000
US average: 38.9
Population, 1990 – 2024
5K 7K 9K 11K 12K 1990 2000 2010 2020 2024 Troy Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $112,434
+15%inflation adjusted, since 2000
from $53,720 in 2000
US average: $82,259
from $21,174 in 2000
US average: $44,673
Households earning $100K+
from 40.4% in 2009
US average: 53.3%
from 3.4% in 2000
US average: 12.5%
from 0.402 in 2010
US average: 0.476
Workforce by industry, 2024
Public administration 6.4%
Professional, scientific, technical 4.8%
Transportation & warehousing 2.6%
Education & health services 2.2%
Agriculture, forestry, fishing 1.3%
Arts, entertainment, food 0.6%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$268,000
+48%inflation adjusted, since 2000
from $99,600 in 2000
US average: $376,019
$1,116
+6%inflation adjusted, since 2000
from $578 in 2000
US average: $1,442
from 73.1% in 2000
26.4% rent
from 5.8% in 2009
US average: 10.0%
from 2.61 people in 2009
US average: 2.54
from 18.7% in 2009
US average: 22.9%
from 39.9% in 2009
US average: 47.4%
from 2.6 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 94.6%(8,063)
Hispanic / Latino 1.5%(127)
2024
White, non-Hispanic 88.9%(10,355)
Hispanic / Latino 3.6%(424)
from 35 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
+ 17 more ancestry groups with data from 24.3% in 2000
US average: 35.6%
High school or higher
from 90.0% in 2000
US average: 89.6%
from 8.4% in 2000
US average: 14.0%
Section 06
Commute & transportation from 16.6 min in 2000
US average: 26.5
from 85.5% in 2009
US average: 68.9%
from 8.6% in 2009
US average: 8.5%
from 0.8% in 2009
US average: 3.2%
from 3.4% in 2009
US average: 15.0%
from 0.8% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 1.3% in 2009
US average: 8.3%
Section 07
Work & employment from 6.1% in 2011
US average: 5.2%
from 60.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 66.2% in 2020
US average: 74.6%
from 9.6% in 2009
US average: 13.1%
from 35.1% in 2009
US average: 42.5%
Section 08
People & community from 1.8% in 2009
US average: 14.1%
from 17.2% in 2009
US average: 6.2%
from 9.6% in 2012
US average: 13.3%
from 9.1% in 2013
US average: 8.4%
from 85.3% in 2017
US average: 91.0%
Computer in household
from 93.0% in 2020
US average: 95.5%
from 84.8% in 2020
US average: 87.7%
from 96.9% in 2016
US average: 77.7%
from 1.9% in 2016
US average: 13.6%
Marital status
Women 15+
Never married 24.5%(1,180)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 9.1% in 2013
US average: 8.4%
from 71.0% in 2020
US average: 54.8%
Direct-purchase
from 12.7% in 2020
US average: 13.8%
from 14.7% in 2020
US average: 18.4%
from 8.0% in 2020
US average: 20.9%
VA health care
from 2.9% in 2020
US average: 2.2%
Any private
from 85.9% in 2020
US average: 67.1%
Any public
from 23.8% 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) 46.4%(472)
Gulf War (1990s) 44.5%(453)
Share of the 1,017 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
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Frequently asked
How many people live in Troy, Illinois? Troy, Illinois has about 11,647 residents according to the 2024 American Community Survey.
What is the median household income in Troy, Illinois? The typical household in Troy, Illinois earns about $112,434 a year. Half of households make more than that, and half make less.
Is Troy, Illinois expensive? In Troy, Illinois, the median home is worth about $268,000, and the typical rent is about $1,116 a month.
How educated are people in Troy, Illinois? About 45.2% of adults age 25 and over in Troy, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Troy, Illinois? About 2.0% of people in Troy, Illinois live below the federal poverty line.
Has Troy, Illinois grown since 1990? Yes, Troy, Illinois has grown since 1990. The population has added about 5,601 residents, a change of about 93 percent over that period.
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