Grundy County, IL
Demographics & Statistics
Updated: 2025-10-25
Updated: 2025-10-25
Life in Grundy County research summary. HomeSnacks has been researching the quality of life in Grundy County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Grundy County:
The population in Grundy County is 52,920.
The median home value in Grundy County is $312,568.
The median income in Grundy County is $93,060.
The median rent in Grundy County is $1,137.
The unemployment rate in Grundy County is 4.5%.
The poverty rate in Grundy County is 6.3%.
The average high in Grundy County is 68.6° and there are 91.0 inches of rainfall annually.
The average high in Grundy County is 68.6°.
There are 76.88 nice days each year.
Expect an average of 91.0 inches of rain each year with 8.7 inches of snow.
There is an average of 4:42 hours of sun each day in Grundy County.
| Stat | Grundy County |
|---|---|
| Mean High | 68.6 |
| Nice Days | 76.88 |
| Rainfall | 91.0 |
| Snowfall | 8.7 |
| Sunny Hours | 4:42 |
The current population in Grundy County is 52,920. The population has increased 3.4% from 2019.
| Year | Population | % Change |
|---|---|---|
| 2023 | 52,364 | 3.1% |
| 2022 | 50,798 | 0.3% |
| 2021 | 50,666 | - |
Grundy County is 49.7% female with 26,291 female residents.
Grundy County is 50.3% male with 26,628 male residents.
| Gender | Grundy County | IL | USA |
|---|---|---|---|
| Female | 49.7% | 50.6% | 50.5% |
| Male | 50.3% | 49.4% | 49.5% |
Grundy County is:
83.3% White with 44,096 White residents.
2.1% African American with 1,123 African American residents.
0.1% American Indian with 37 American Indian residents.
0.4% Asian with 231 Asian residents.
0.0% Hawaiian with 0 Hawaiian residents.
0.1% Other with 48 Other residents.
2.5% Two Or More with 1,304 Two Or More residents.
11.5% Hispanic with 6,081 Hispanic residents.
| Race | Grundy County | IL | USA |
|---|---|---|---|
| White | 83.3% | 58.7% | 58.2% |
| African American | 2.1% | 13.6% | 12.0% |
| American Indian | 0.1% | 0.1% | 0.5% |
| Asian | 0.4% | 5.8% | 5.7% |
| Hawaiian | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.3% | 0.5% |
| Two Or More | 2.5% | 3.0% | 3.9% |
| Hispanic | 11.5% | 18.5% | 19.0% |
2.4% of households in Grundy County earn Less than $10,000.
1.8% of households in Grundy County earn $10,000 to $14,999.
5.8% of households in Grundy County earn $15,000 to $24,999.
6.0% of households in Grundy County earn $25,000 to $34,999.
10.0% of households in Grundy County earn $35,000 to $49,999.
14.8% of households in Grundy County earn $50,000 to $74,999.
13.2% of households in Grundy County earn $75,000 to $99,999.
22.3% of households in Grundy County earn $100,000 to $149,999.
9.8% of households in Grundy County earn $150,000 to $199,999.
13.8% of households in Grundy County earn $200,000 or more.
| Income | Grundy County | IL | USA |
|---|---|---|---|
| Less than $10,000 | 2.4% | 5.2% | 4.9% |
| $10,000 to $14,999 | 1.8% | 3.4% | 3.6% |
| $15,000 to $24,999 | 5.8% | 6.2% | 6.6% |
| $25,000 to $34,999 | 6.0% | 6.5% | 6.8% |
| $35,000 to $49,999 | 10.0% | 9.9% | 10.4% |
| $50,000 to $74,999 | 14.8% | 15.1% | 15.7% |
| $75,000 to $99,999 | 13.2% | 12.7% | 12.7% |
| $100,000 to $149,999 | 22.3% | 17.9% | 17.4% |
| $150,000 to $199,999 | 9.8% | 9.9% | 9.3% |
| $200,000 or more | 13.8% | 13.1% | 12.6% |
3.0% of adults in Grundy County completed < 9th grade.
4.0% of adults in Grundy County completed 9-12th grade.
34.0% of adults in Grundy County completed high school / ged.
26.0% of adults in Grundy County completed some college.
10.0% of adults in Grundy County completed associate's degree.
16.0% of adults in Grundy County completed bachelor's degree.
6.0% of adults in Grundy County completed master's degree.
1.0% of adults in Grundy County completed professional degree.
0.0% of adults in Grundy County completed doctorate degree.
| Education | Grundy County | IL | USA |
|---|---|---|---|
| < 9th Grade | 3% | 5% | 5% |
| 9-12th Grade | 4% | 5% | 6% |
| High School / GED | 34% | 25% | 26% |
| Some College | 26% | 20% | 19% |
| Associate's Degree | 10% | 8% | 9% |
| Bachelor's Degree | 16% | 22% | 21% |
| Master's Degree | 6% | 11% | 10% |
| Professional Degree | 1% | 2% | 2% |
| Doctorate Degree | 0% | 2% | 2% |
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