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Gillespie, IL
Full City Profile · Illinois · Macoupin County County
3.1
/5.0
B
Good
3,118
Population
2,107/sq mi density
$76,806
Median Income
$37,996 per capita
$89,500
Home Value
$109,913 Zillow
$756
Median Rent
12.9% income on rent
53°F
Avg Temperature
293 sunny days/yr
743
Violent Crime/100K
3,197 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$76,806 median income, 2.8% unemployment
A+
Affordability
5.0 / 5.0
$89,500 home value, $756/mo rent
F
Safety
1.0 / 5.0
743 violent crimes/100K (95% above avg)
C
Education
2.5 / 5.0
18.6% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-3.7%
3,232 → 3,114
over 10 years
Annual Pop. Growth
-0.37%
Compound annual growth rate
Median Income Change
+86.2%
$41,250 → $76,806
nominal, not inflation-adjusted
Annual Income Growth
+6.41%
Compound annual growth rate
Population Over Time
Total population for Gillespie 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
3,034
-80 from 2023 (3,114)
Projected Median Income 2030
$118,651
+$41,845 from 2023 ($76,806)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 3,232 | — | $41,250 | — |
| 2015 | 3,160 | -2.2% | $40,521 | -1.8% |
| 2017 | 3,147 | -0.4% | $40,236 | -0.7% |
| 2019 | 3,097 | -1.6% | $41,624 | +3.4% |
| 2021 | 3,166 | +2.2% | $45,817 | +10.1% |
| 2023 | 3,114 | -1.6% | $76,806 | +67.6% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.