United States › Illinois › Monticello CITY
Monticello Illinois · 6,080 residents (2025 est.) · 3.88 sq mi
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The short version
Monticello is a city of 6,304 people in Illinois. That puts it in the top 8% of US cities for household income. 83% of homes are owner-occupied. At a median age of 43.8, this is an older place than the country as a whole. The foreign-born share is 3%. Home values have more than doubled since 2000, reaching $210,500.
At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 43.8
US median: 38.9
More educated
41% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 5,138 in 2000
6,080 in 2025 (Census Bureau estimate)
1,626 / sq mi
+24%since 2009
from 1,314 / sq mi in 2009
US average: 281
from 41.7 in 2000
US average: 38.9
Population, 1990 – 2024
4K 5K 5K 6K 7K 1990 2000 2010 2020 2024 Monticello Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $99,449
+19%inflation adjusted, since 2000
from $45,754 in 2000
US average: $82,259
from $23,257 in 2000
US average: $44,673
Households earning $100K+
from 33.0% in 2009
US average: 53.3%
from 3.8% in 2000
US average: 12.5%
from 0.429 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 5.6%
Professional, scientific, technical 4%
Transportation & warehousing 3%
Arts, entertainment, food 1.2%
Education & health services 0.9%
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$210,500
+19%inflation adjusted, since 2000
from $96,800 in 2000
US average: $376,019
$1,379
+58%inflation adjusted, since 2000
from $480 in 2000
US average: $1,442
from 78.8% in 2000
17.3% rent
from 6.2% in 2009
US average: 10.0%
from 2.24 people in 2009
US average: 2.54
from 12.4% in 2009
US average: 22.9%
from 34.3% in 2009
US average: 47.4%
from 2.5 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 98.4%(5,054)
Hispanic / Latino 0.8%(41)
2024
White, non-Hispanic 94.5%(5,958)
Hispanic / Latino 1.9%(119)
from 6 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 9 more ancestry groups with data from 30.7% in 2000
US average: 35.6%
High school or higher
from 88.4% in 2000
US average: 89.6%
from 12.2% in 2000
US average: 14.0%
Section 06
Commute & transportation from 14.2 min in 2000
US average: 26.5
from 85.3% in 2009
US average: 68.9%
from 7.3% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 3.0% in 2009
US average: 15.0%
from 3.9% in 2009
US average: 2.4%
from 0.5% in 2009
US average: 0.4%
from 5.2% in 2009
US average: 8.3%
Section 07
Work & employment from 1.3% in 2011
US average: 5.2%
from 68.0% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 79.2% in 2020
US average: 74.6%
from 19.4% in 2009
US average: 13.1%
from 39.4% in 2009
US average: 42.5%
Section 08
People & community from 2.4% in 2009
US average: 14.1%
from 15.7% in 2009
US average: 6.2%
from 12.6% in 2012
US average: 13.3%
from 5.2% in 2013
US average: 8.4%
from 83.2% in 2017
US average: 91.0%
Computer in household
from 91.7% in 2020
US average: 95.5%
from 89.0% in 2020
US average: 87.7%
from 96.7% in 2016
US average: 77.7%
from 1.0% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 5.2% in 2013
US average: 8.4%
from 65.1% in 2020
US average: 54.8%
Direct-purchase
from 15.6% in 2020
US average: 13.8%
from 23.6% in 2020
US average: 18.4%
from 12.2% in 2020
US average: 20.9%
VA health care
from 2.8% in 2020
US average: 2.2%
Any private
from 79.4% in 2020
US average: 67.1%
Any public
from 35.5% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 10.6%(30)
Gulf War (1990s) 28.4%(80)
Share of the 282 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Monticello Head to head
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Frequently asked
How many people live in Monticello, Illinois? Monticello, Illinois has about 6,304 residents according to the 2024 American Community Survey.
What is the median household income in Monticello, Illinois? The typical household in Monticello, Illinois earns about $99,449 a year. Half of households make more than that, and half make less.
Is Monticello, Illinois expensive? In Monticello, Illinois, the median home is worth about $210,500, and the typical rent is about $1,379 a month.
How educated are people in Monticello, Illinois? About 40.7% of adults age 25 and over in Monticello, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Monticello, Illinois? About 5.7% of people in Monticello, Illinois live below the federal poverty line.
Has Monticello, Illinois grown since 1990? Yes, Monticello, Illinois has grown since 1990. The population has added about 1,755 residents, a change of about 39 percent over that period.
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