All Countries
Dorchester, IL
Full City Profile · Illinois · Macoupin County County
3.3
/5.0
B
Good
185
Population
257/sq mi density
$121,250
Median Income
$40,152 per capita
$133,300
Home Value
$171,282 Zillow
53°F
Avg Temperature
293 sunny days/yr
217
Violent Crime/100K
1,705 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$121,250 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$133,300 home value, /mo rent
F
Safety
1.0 / 5.0
217 violent crimes/100K
C
Education
2.0 / 5.0
12.5% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-15%
147 → 125
over 10 years
Annual Pop. Growth
-1.61%
Compound annual growth rate
Median Income Change
+164.5%
$45,833 → $121,250
nominal, not inflation-adjusted
Annual Income Growth
+10.22%
Compound annual growth rate
Population Over Time
Total population for Dorchester 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
112
-13 from 2023 (125)
Projected Median Income 2030
$239,610
+$118,360 from 2023 ($121,250)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 147 | — | $45,833 | — |
| 2015 | 144 | -2% | $47,656 | +4% |
| 2017 | 140 | -2.8% | $50,000 | +4.9% |
| 2019 | 138 | -1.4% | $51,042 | +2.1% |
| 2021 | 129 | -6.5% | $84,375 | +65.3% |
| 2023 | 125 | -3.1% | $121,250 | +43.7% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.