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Bonfield, IL
Full City Profile · Illinois · Grundy County County
3.1
/5.0
B
Good
474
Population
967/sq mi density
$86,667
Median Income
$36,138 per capita
$190,800
Home Value
$304,030 Zillow
$825
Median Rent
21.7% income on rent
49°F
Avg Temperature
275 sunny days/yr
64
Violent Crime/100K
700 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$86,667 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$190,800 home value, $825/mo rent
F
Safety
1.0 / 5.0
64 violent crimes/100K
D
Education
1.8 / 5.0
10.1% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-8.6%
374 → 342
over 10 years
Annual Pop. Growth
-0.89%
Compound annual growth rate
Median Income Change
+35.9%
$63,750 → $86,667
nominal, not inflation-adjusted
Annual Income Growth
+3.12%
Compound annual growth rate
Population Over Time
Total population for Bonfield 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
321
-21 from 2023 (342)
Projected Median Income 2030
$107,462
+$20,795 from 2023 ($86,667)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 374 | — | $63,750 | — |
| 2015 | 368 | -1.6% | $69,432 | +8.9% |
| 2017 | 361 | -1.9% | $80,000 | +15.2% |
| 2019 | 355 | -1.7% | $71,705 | -10.4% |
| 2021 | 340 | -4.2% | $73,333 | +2.3% |
| 2023 | 342 | +0.6% | $86,667 | +18.2% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.