Demographics of Troy city, Illinois

Troy city, Illinois had 11,893 people on July 1, 2025, by the Census Bureau’s estimate: +460 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Troy city, in four figures

11,893
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 11,647 ±162.; +4.0%
Change since July 2020: +460 people.; 35.2 ±1.8
Median age: ACS 2020–⁠2024.; $112,434 ±$14,956
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Troy city, Illinois's population grew 4.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Troy city, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Troy city, Illinois's population grew 4.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Troy city, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	11,433	100.0	100.0
2021	11,523	100.8	100.2
2022	11,623	101.7	100.7
2023	11,704	102.4	101.6
2024	11,807	103.3	102.5
2025	11,893	104.0	103.1

Population of Troy city, Illinois on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	11,433	—
2021	11,523	+90
2022	11,623	+100
2023	11,704	+81
2024	11,807	+103
2025	11,893	+86

Age, 2020–2024

The median age is 35.2 ±1.8: for men 34.2 ±2.9 and for women 37.3 ±2.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Troy city by age, ACS 2020–2024
Age	People	Share	Illinois	United States
Under 5	960 ±295	8.2% ±2.5	5.4% ±<0.1	5.6% ±<0.1
5 to 17	2,515 ±425	21.6% ±3.6	16.4% ±0.1	16.3% ±<0.1
18 to 24	476 ±202	4.1% ±1.7	9.1% ±<0.1	9.1% ±<0.1
25 to 44	3,558 ±465	30.5% ±4.0	26.9% ±0.1	26.9% ±<0.1
45 to 64	2,512 ±343	21.6% ±2.9	25.2% ±0.1	24.8% ±<0.1
65 and over	1,626 ±286	14.0% ±2.5	17.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $112,434 ±$14,956, and income per person $47,472 ±$3,599, in 2024 dollars. The median is $83,390 ±$362 in Illinois and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Troy city by income, ACS 2020–2024
Household income	Households	Share	Illinois	United States
Under $25,000	201 ±92	4.6% ±2.1	14.6% ±0.1	14.6% ±<0.1
$25,000 to $49,999	576 ±200	13.1% ±4.5	16.0% ±0.2	16.7% ±<0.1
$50,000 to $74,999	662 ±193	15.1% ±4.3	14.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	570 ±171	13.0% ±3.8	12.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	1,059 ±313	24.1% ±7.0	18.0% ±0.2	17.5% ±<0.1
$150,000 to $199,999	699 ±184	15.9% ±4.1	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	622 ±156	14.2% ±3.5	13.8% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Troy city by age, ACS 2020–2024
Age	Below poverty	Rate	Illinois	United States
All ages	100 to 364	0.9% to 3.1%	11.8% ±0.1	12.5% ±0.1
Under 18	0 to 122	0% to 3.5%	15.1% ±0.2	16.1% ±0.1
18 to 59	33 to 177	0.6% to 3.2%	11.0% ±0.1	11.6% ±0.1
60 and over	9 to 141	0.4% to 5.4%	10.6% ±0.1	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

1 more column on a wider screen

Housing in Troy city, ACS 2020–2024
Measure	Troy city	Illinois	United States
Housing units	4,806 ±279	5,457,452 ±471	143,775,355 ±10,234
Occupied	91.3% ±7.1	92.3% ±0.1	89.9% ±0.1
Vacant	8.7% ±4.3	7.7% ±0.1	10.1% ±0.1
Owner occupied	73.6% ±3.4	67.1% ±0.3	65.2% ±0.3
Renter occupied	26.4% ±5.5	32.9% ±0.2	34.8% ±0.1
Median home value	$268,000 ±$14,000	$263,300 ±$797	$332,700 ±$236
Median gross rent	$1,116 ±$116	$1,274 ±$5	$1,413 ±$2
Median year built	1993 ±3	1971 ±2	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Troy city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Illinois	United States
Hispanic or Latino	169 to 679	1.5% to 5.8%	18.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	10,355 ±480	88.9% ±3.9	58.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	53 to 243	0.5% to 2.1%	13.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 158	0% to 1.4%	5.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 20	0% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 20	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 51	0% to 0.4%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	271 to 975	2.3% to 8.4%	3.4% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Troy city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Illinois	United States
Born in the state	7,505 ±521	64.4% ±4.4	66.5% ±0.1	57.3% ±<0.1
Born in another state	3,783 ±510	32.5% ±4.4	17.5% ±0.1	26.9% ±<0.1
Born a citizen outside the states	38 to 210	0.3% to 1.8%	1.3% ±<0.1	1.7% ±<0.1
Born abroad	112 to 358	1.0% to 3.1%	14.7% ±0.1	14.1% ±<0.1
Naturalized citizens	51 to 227	0.4% to 1.9%	7.7% ±0.1	7.4% ±<0.1
Not citizens	0 to 195	0% to 1.7%	7.0% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Troy city among the places of Illinois

202nd of 337 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Illinois page.

Places of Illinois near Troy city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Plano city	12,203 ±722
Palos Heights city	12,152 ±29
River Forest village	11,992 ±46
Kewanee city	11,913 ±445
Centralia city	11,856 ±176
Troy city	11,647 ±162
Schiller Park village	11,393 ±27
Markham city	11,355 ±28
Pontiac city	11,294 ±294
Burr Ridge village	11,141 ±36
Fox Lake village	11,131 ±492

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026