All Countries
Monticello, IL
Full City Profile · Illinois · Piatt County County
3.7
/5.0
B+
Good
6,332
Population
1,571/sq mi density
$88,611
Median Income
$42,725 per capita
$196,000
Home Value
$266,645 Zillow
$1,030
Median Rent
33.6% income on rent
51°F
Avg Temperature
275 sunny days/yr
215
Violent Crime/100K
484 property/100K
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$88,611 median income, 1.4% unemployment
A+
Affordability
5.0 / 5.0
$196,000 home value, $1,030/mo rent
F
Safety
1.0 / 5.0
215 violent crimes/100K
A
Education
4.1 / 5.0
38.4% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+8.8%
5,531 → 6,020
over 10 years
Annual Pop. Growth
+0.85%
Compound annual growth rate
Median Income Change
+29.4%
$68,457 → $88,611
nominal, not inflation-adjusted
Annual Income Growth
+2.61%
Compound annual growth rate
Population Over Time
Total population for Monticello 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
6,387
+367 from 2023 (6,020)
Projected Median Income 2030
$106,124
+$17,513 from 2023 ($88,611)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 5,531 | — | $68,457 | — |
| 2015 | 5,513 | -0.3% | $71,859 | +5% |
| 2017 | 5,560 | +0.9% | $74,583 | +3.8% |
| 2019 | 5,561 | +0% | $75,274 | +0.9% |
| 2021 | 5,931 | +6.7% | $83,878 | +11.4% |
| 2023 | 6,020 | +1.5% | $88,611 | +5.6% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.