Monticello
Monticello is wealthier than most US places, with a median household income of $99,449. Population has grown 23% since 2000. Median home value has more than doubled since 2000, reaching $210,500. Poverty is rare here, at 5.7% of residents. It sits in the top 10% of US cities for household income.
Population & growth
PEP 2025 EST:6,080 residents (Census Bureau Vintage 2025, released March 2026)
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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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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024