How Grundy County Compares

Grundy County

38.3 years

Illinois Average

38.3 years

Rank #93 of 102 in state

National

38.9 years

1.5% below

National Distribution

Where Grundy County falls among all 3,222 U.S. counties for median age.

21.4 years 86.2 years

■ Grundy County: 38.3 years

Ranking Context

Rank	County	Value
#2,520	Evans County, GA	38.3 years
#2,521	Wayne County, GA	38.3 years
#2,522	Cass County, IL	38.3 years
#2,523	Grundy County, IL	38.3 years
#2,524	Iberia Parish, LA	38.3 years
#2,525	Nicollet County, MN	38.3 years
#2,526	Union County, MS	38.3 years

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Median Age in Grundy County, Illinois

Grundy County, Illinois has a median age of 38.3 years, which ranks #2,523 of 3,222 out of 3,222 counties nationwide. This is 1.5% below the national value of 38.9 years.

Within Illinois, Grundy County ranks #93 of 102 out of 102 counties. This places it in the 22th percentile nationally.

The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.