Rock Island County, Illinois
IL · FIPS 17161 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 142,757 | — | #474 / 3,222 | |
| Median Household Income | $67,159 | -10.6% | #1,419 / 3,222 | |
| Median Age | 40.3 years | +3.6% | #2,021 / 3,222 | |
| Median Home Value | $150,400 | -46.6% | #2,250 / 3,222 | |
| Median Gross Rent | $889 | -23.6% | #1,496 / 3,222 | |
| Poverty Rate | 15.5% | +23.0% | #2,042 / 3,222 | |
Demographics
Rock Island County has a population of 142,757, making it the #474 most populous county in the US. The median age is 40.3 years, which is 3.6% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in Rock Island County is $67,159, ranking #1,419 out of 3,222 counties — 10.6% below the national median. The poverty rate is 15.5% and unemployment stands at 5.6%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in Rock Island County is $150,400 (-46.6% vs national). Renters pay a median of $889/mo and the homeownership rate is 69.7%.
Median Home Value Trend
Rankings →Health
93.9% of residents in Rock Island County have health insurance coverage, which is 2.4% above the national rate.
About Rock Island County, Illinois
Rock Island County, Illinois has a total population of 142,757, making it the 474th most populous county in the United States. The median age in Rock Island County is 40.3 years, which is 3.6% above the national median of 38.9 years.
The median household income in Rock Island County is $67,159, which ranks #1,419 of 3,222 counties nationwide. This is 10.6% below the national median of $75,149. The poverty rate is 15.5%, higher than the national rate of 12.6%. The unemployment rate stands at 5.6%.
The median home value in Rock Island County is $150,400, 46.6% below the national median. Renters in Rock Island County pay a median gross rent of $889 per month. The homeownership rate is 69.7%, compared to the national rate of 64.4%.
In Rock Island County, 24.7% of residents aged 25 and older hold a bachelor's degree or higher, 26.6% below the national average of 33.7%. Health insurance coverage stands at 93.9% of the population. The average commute time for workers is 21.7 min.
Rock Island County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 67.4% of the population, followed by Hispanic or Latino (14.2%) and Black (non-Hispanic) (10.9%).
All data for Rock Island County, Illinois comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.