Colchester, IL
Full City Profile · Illinois · McDonough County County
3.8
/5.0
B+
Good
1,057
Population
919/sq mi density
$62,500
Median Income
$31,944 per capita
$86,500
Home Value
$106,592 Zillow
$808
Median Rent
39.7% income on rent
51°F
Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$62,500 median income, 4.4% unemployment
A+
Affordability
5.0 / 5.0
$86,500 home value, $808/mo rent
C
Education
2.5 / 5.0
18.7% bachelor's degree or higher
Change Over Time (2013, 2023)
Population Change
-20.9%
1,386 → 1,096
over 10 years
Annual Pop. Growth
-2.32%
Compound annual growth rate
Median Income Change
+64.9%
$37,892 → $62,500
nominal, not inflation-adjusted
Annual Income Growth
+5.13%
Compound annual growth rate
Population Over Time
Total population for Colchester 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
930
-166 from 2023 (1,096)
Projected Median Income 2030
$88,709
+$26,209 from 2023 ($62,500)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 1,386 | - | $37,892 | - |
| 2015 | 1,363 | -1.7% | $35,647 | -5.9% |
| 2017 | 1,324 | -2.9% | $37,727 | +5.8% |
| 2019 | 1,296 | -2.1% | $43,164 | +14.4% |
| 2021 | 1,070 | -17.4% | $49,063 | +13.7% |
| 2023 | 1,096 | +2.4% | $62,500 | +27.4% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.