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Troy, IL
Full City Profile · Illinois · Madison County County
3.9
/5.0
B+
Good
10,889
Population
1,745/sq mi density
$97,825
Median Income
$44,948 per capita
$240,800
Home Value
$321,403 Zillow
$1,060
Median Rent
23.2% income on rent
58°F
Avg Temperature
293 sunny days/yr
145
Violent Crime/100K
706 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$97,825 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$240,800 home value, $1,060/mo rent
F
Safety
1.0 / 5.0
145 violent crimes/100K
A+
Education
4.6 / 5.0
45.5% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+17.1%
10,008 → 11,721
over 10 years
Annual Pop. Growth
+1.59%
Compound annual growth rate
Median Income Change
+37.3%
$71,250 → $97,825
nominal, not inflation-adjusted
Annual Income Growth
+3.22%
Compound annual growth rate
Population Over Time
Total population for Troy across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
13,089
+1,368 from 2023 (11,721)
Projected Median Income 2030
$122,123
+$24,298 from 2023 ($97,825)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 10,008 | — | $71,250 | — |
| 2015 | 10,050 | +0.4% | $69,137 | -3% |
| 2017 | 10,204 | +1.5% | $71,346 | +3.2% |
| 2019 | 10,361 | +1.5% | $71,381 | +0% |
| 2021 | 11,175 | +7.9% | $80,677 | +13% |
| 2023 | 11,721 | +4.9% | $97,825 | +21.3% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.