Census place 1776199

Troy

A Census profile of the people, homes, and daily patterns that shape this place.

Official Census name: Troy city

Relocation snapshot

What stands out in Troy.

According to the 2025 estimate, Troy has a population of 11,893 and 1,902 residents per square mile. Of the six relocation measures evaluated, the three largest relative differences from the median among 225 covered Illinois places are: population density is 1,902/sq mi, below the comparison median of 2,707/sq mi; median household income is $112,434, above the comparison median of $90,282; and median gross rent is $1,116, below the comparison median of $1,347. These unweighted medians compare covered Census places and are not statewide estimates.

population density
1,902/sq mi
Below the comparison median of 2,707/sq mi
median household income
$112,434
Above the comparison median of $90,282
median gross rent
$1,116
Below the comparison median of $1,347

National context

Follow the metrics.

Compare Troy's values with other covered Census places. Rankings are descriptive, not recommendations.

At a glance

A city in numbers.

Population
11,893
2025 estimate
Annual change
+0.7%
Population estimate
Density
1,902/sq mi
6.3 sq mi land area
Median age
35.2 years
ACS 5-year estimate

Living here

The everyday equation.

Households, homes, education, and the time it takes to get around.

Median household income
$112,434
Median home value
$268,000
Median gross rent
$1,116
Bachelor’s degree or higher
45.2%
Typical commute
25.7 min
Drive-alone commute
81.1%
Public transit commute
0.2%
Walked to work
0.3%

Housing

Who rents, and what it takes.

Renter share and rent burden help describe the housing choices visible in this place.

Renter-occupied homes
26.4%
Renters paying 30%+ of income
26.7%

Work

How the workday lands.

Employment status and working-from-home share add context to income and commuting patterns.

Employed residents 16+
69.3%
Unemployed residents 16+
2.2%
Working from home
12.3%

Community

The everyday infrastructure.

Access, mobility, housing growth, and household composition add another layer to a place's day-to-day picture.

Households with broadband
95.5%
Homes built 2020+
3%
Households without a vehicle
4%
Households with children
41%
Residents with a disability
11.5%
Residents without insurance
4%

Environmental context

A record of declared events.

FEMA declarations for Madison County provide historical context, not a forecast or a property-level risk assessment.

Environmental declarations since 2000
6
Tornado declarations
2
Flood declarations
1
Hurricane declarations
1

Climate normals

The long view of weather.

Thirty-year averages, not a forecast. Temperature and precipitation describe the typical conditions recorded from 1991 through 2020.

Representative station: BELLEVILLE SIU RSCH (14 mi from place center)
Average high
68.9°F
Average low
46.4°F
Annual rainfall
43.4"
Annual snowfall
11.2"

Month by month

A year in Troy.

Typical high and low °F
20°F40°F60°F80°F100°F
JFMAMJJASOND
Typical precipitation inches

Data vintage

Population is from the 2025 Population Estimates Program. Household, housing, education, and commute data are from the 2020-2024 American Community Survey 5-year release. Disaster declarations are from FEMA's OpenFEMA dataset and are refreshed with this edition.

Similar places

More places to consider.

Selected by the closest mix of population, density, median home value, and average annual high.

Red Bank, TN

Population, housing, work, and travel data for this Census place.

Population
12,405
Median home
$269,400

Ontario, OR

Population, housing, work, and travel data for this Census place.

Population
11,957
Median home
$236,300

Grandview, WA

Population, housing, work, and travel data for this Census place.

Population
12,062
Median home
$265,300

Keep exploring

Compare Troy with Red Bank