Grafton
Grafton is wealthier than most US places, with a median household income of $105,417. Population has grown 21% since 2000. Median home value has more than tripled since 2000, reaching $275,800. With a median age of 52.2, the population is older than the US median of 38.9. Poverty is rare here, at 4.8% of residents. It sits in the top 10% of US cities for household income.
Population & growth
PEP 2025 EST:773 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Education
Commute & transportation
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People & community
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How many people live in Grafton, Illinois?
Grafton, Illinois has about 734 residents according to the 2024 American Community Survey.
What is the median household income in Grafton, Illinois?
The typical household in Grafton, Illinois earns about $105,417 a year. Half of households make more than that, and half make less.
Is Grafton, Illinois expensive?
In Grafton, Illinois, the median home is worth about $275,800, and the typical rent is about $629 a month.
How educated are people in Grafton, Illinois?
About 37.6% of adults age 25 and over in Grafton, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Grafton, Illinois?
About 4.8% of people in Grafton, Illinois live below the federal poverty line.
Has Grafton, Illinois grown since 1990?
Yes, Grafton, Illinois has shrunk since 1990. The population has lost about 184 residents, a change of about -20 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024