All Countries
Mendon, IL
Full City Profile · Illinois · Hancock County County
2.9
/5.0
C+
Fair
1,131
Population
1,315/sq mi density
$62,778
Median Income
$26,427 per capita
$108,500
Home Value
$199,601 Zillow
$661
Median Rent
28.6% income on rent
52°F
Avg Temperature
282 sunny days/yr
464
Violent Crime/100K
3,327 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$62,778 median income, 3.5% unemployment
A+
Affordability
5.0 / 5.0
$108,500 home value, $661/mo rent
F
Safety
1.0 / 5.0
464 violent crimes/100K (22% above avg)
D
Education
2.0 / 5.0
12.3% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-11.6%
963 → 851
over 10 years
Annual Pop. Growth
-1.23%
Compound annual growth rate
Median Income Change
+49.2%
$42,083 → $62,778
nominal, not inflation-adjusted
Annual Income Growth
+4.08%
Compound annual growth rate
Population Over Time
Total population for Mendon 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
780
-71 from 2023 (851)
Projected Median Income 2030
$83,057
+$20,279 from 2023 ($62,778)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 963 | — | $42,083 | — |
| 2015 | 963 | +0% | $51,136 | +21.5% |
| 2017 | 961 | -0.2% | $54,531 | +6.6% |
| 2019 | 955 | -0.6% | $53,421 | -2% |
| 2021 | 858 | -10.2% | $56,875 | +6.5% |
| 2023 | 851 | -0.8% | $62,778 | +10.4% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.