Grundy County, Illinois
Grundy County, Illinois, had an estimated population of 54,052 in 2025 across 1,083 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Illinois's counties and nationally.
- Population
- 54,052
- 2025 estimate
- Area
- 1,083 km²
- Density
- 50
- per km²
- Median income
- $92,235
- household, ACS 2024
- Median age
- 38.3
- years, ACS 2024
How Illinois's counties spread
Amenities & Infrastructure
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Households with Broadband2024 | 91.8% | 9 / 102 | 463 / 3,144 |
| Median Gross Rent2024 | $1,177 | 8 / 102 | 575 / 3,137 |
| Median Home Value2024 | $271,700 | 9 / 102 | 773 / 3,139 |
| Owner-Occupied Homes2024 | 74.4% | 67 / 102 | 1,605 / 3,144 |
| Vacant Homes2024 | 3.7% | 99 / 102 | 3,096 / 3,144 |
Demography
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Aged 65 and Over2024 | 15.1% | 97 / 102 | 2,774 / 3,144 |
| American Indian & Alaska Native2024 | 0.1% | 18 / 102 | 1,566 / 3,144 |
| Asian, non-Hispanic2024 | 0.6% | 45 / 102 | 1,544 / 3,144 |
| Average Household Size2024people | 2.6 | 13 / 102 | 742 / 3,144 |
| Black, non-Hispanic2024 | 2.3% | 53 / 102 | 1,504 / 3,144 |
| Foreign-Born2024 | 4.1% | 21 / 102 | 1,169 / 3,144 |
| Hispanic or Latino2024 | 12.0% | 15 / 102 | 735 / 3,144 |
| Median Age2024years | 38.3 | 92 / 102 | 2,439 / 3,144 |
| Sex Ratio2024per 1,000 males | 985 | 69 / 102 | 1,914 / 3,144 |
| Speak a Language Other Than English2024 | 8.5% | 22 / 102 | 1,079 / 3,144 |
| Under 182024 | 24.3% | 5 / 102 | 603 / 3,144 |
| Veterans2024 | 7.1% | 58 / 102 | 1,631 / 3,144 |
| White, non-Hispanic2024 | 82.4% | 71 / 102 | 1,444 / 3,144 |
Economy
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Below Poverty Line2024 | 6.0% | 100 / 102 | 3,033 / 3,144 |
| Households on SNAP2024 | 10.9% | 82 / 102 | 1,733 / 3,144 |
| Income Inequality2024index | 0.404 | 92 / 102 | 2,861 / 3,144 |
| Median Household Income2024 | $92,235 | 10 / 102 | 263 / 3,143 |
| Per Capita Income2024 | $43,656 | 13 / 102 | 502 / 3,144 |
| Unemployment Rate2024 | 4.6% | 45 / 102 | 1,406 / 3,144 |
Education
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Bachelor's Degree or Higher2024 | 23.6% | 35 / 102 | 1,370 / 3,144 |
| High School or Higher2024 | 93.8% | 19 / 102 | 546 / 3,144 |
Health Coverage
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| No Health Insurance2024 | 3.4% | 91 / 102 | 3,003 / 3,144 |
| With a Disability2024 | 9.7% | 99 / 102 | 3,031 / 3,144 |
Population & Density
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Population2025 | 54,052 | 25 / 102 | 963 / 3,144 |
| Population Density2025/km² | 50 | 22 / 102 | 759 / 3,144 |
Work & Commute
| Indicator | Value | In Illinois | In the US |
|---|---|---|---|
| Commute by Public Transit2024 | 0.4% | 38 / 102 | 924 / 3,144 |
| Households with No Vehicle2024 | 4.0% | 85 / 102 | 2,321 / 3,144 |
| Mean Commute Time2024minutes | 26.8 | 24 / 102 | 981 / 3,143 |
| Work from Home2024 | 10.0% | 27 / 102 | 1,182 / 3,144 |
Other counties of Illinois
- Adams County
- Alexander County
- Bond County
- Boone County
- Brown County
- Bureau County
- Calhoun County
- Carroll County
- Cass County
- Champaign County
- Christian County
- Clark County
- Clay County
- Clinton County
- Coles County
- Cook County
- Crawford County
- Cumberland County
- De Witt County
- DeKalb County
- Douglas County
- DuPage County
- Edgar County
- Edwards County
- Effingham County
- Fayette County
- Ford County
- Franklin County
- Fulton County
- Gallatin County
- Greene County
- Hamilton County
- Hancock County
- Hardin County
- Henderson County
- Henry County
- Iroquois County
- Jackson County
- Jasper County
- Jefferson County
- Jersey County
- Jo Daviess County
- Johnson County
- Kane County
- Kankakee County
- Kendall County
- Knox County
- LaSalle County
- Lake County
- Lawrence County
- Lee County
- Livingston County
- Logan County
- Macon County
- Macoupin County
- Madison County
- Marion County
- Marshall County
- Mason County
- Massac County
- McDonough County
- McHenry County
- McLean County
- Menard County
- Mercer County
- Monroe County
- Montgomery County
- Morgan County
- Moultrie County
- Ogle County
- Peoria County
- Perry County
- Piatt County
- Pike County
- Pope County
- Pulaski County
- Putnam County
- Randolph County
- Richland County
- Rock Island County
- Saline County
- Sangamon County
- Schuyler County
- Scott County
- Shelby County
- St. Clair County
- Stark County
- Stephenson County
- Tazewell County
- Union County
- Vermilion County
- Wabash County
- Warren County
- Washington County
- Wayne County
- White County
- Whiteside County
- Will County
- Williamson County
- Winnebago County
- Woodford County
Compare Grundy County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.