2023 Rock Island County, Illinois Demographics | Comprehensive Overview
Data and insights for Rock Island County, Illinois, including population, age & gender distribution, race & ethnicity, median & household income distribution, property value distribution, educational attainment, health insurance coverage, nativity & citizenship, commuting & transportation, employment, veteran service, poverty & income and SNAP/food stamp recipients. Based on 2023 American Community Survey Estimates.
Rock Island County, Illinois Key Demographic Statistics (2023 Estimates)
Key demographic statistics summarized from the U.S. Census Bureau's 2023 American Community Survey (ACS).
Source: U.S. Census Bureau, 2023 American Community Survey (ACS) Estimates
Rock Island County, Illinois Demographics: Age & Gender Distribution (2023)

Key Demographic Indicators for Rock Island County, Illinois
The following statistics highlight Rock Island County, Illinois population and median age, based on U.S. Census Bureau 2023 ACS Estimates.
- Total Population
- 142,995
- Median Age (Total)
- 40.3 years
- Median Age (Male)
- 39.2 years
- Median Age (Female)
- 41.4 years
Rock Island County, Illinois Age Distribution Comparison with Illinois 2023
Compare Rock Island County, Illinois age demographics with Illinois to understand regional demographic patterns.
| Metric | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Median Age | 40.3 yrs | 39.4 yrs | +0.9 yrs |
| Under 5 years | 5.88% | 5.15% | +0.7pp |
| Children (5–17 years) | 16.66% | 16.03% | +0.6pp |
| Young Adults (18–24) | 8.79% | 9.19% | -0.4pp |
| Middle-aged (35–54) | 23.60% | 25.72% | -2.1pp |
| Seniors (65+) | 20.06% | 17.90% | +2.2pp |
| Total Dependency Ratio | 74.21 | 64.15 | +10.1 |
Note: "pp" indicates percentage points. "yrs" indicates years. The dependency ratio measures the burden on working-age population (18-64) to support dependents (under 18 and 65+).
Dependency Ratios Analysis
- Total Dependency Ratio
- 74.21
- Youth Dependency Ratio
- 39.26 Population under 18 relative to working age (18-64).
- Old-Age Dependency Ratio
- 34.95 Population 65+ relative to working age (18-64).
A higher ratio indicates a greater financial and social burden on the working population to support non-working age groups.
Rock Island County, Illinois Demographics: Racial and Ethnic Composition (2023)

Diversity & Cultural Composition of Rock Island County, Illinois
The racial makeup and ethnic composition of Rock Island County, Illinois are detailed below, drawing from the U.S. Census Bureau's 2023 ACS Estimates.
- Diversity Index Score
- 49.80
- Diversity Tier
- moderate
- Definition
- The probability that two individuals chosen at random will be from different racial or ethnic groups.
Diversity Comparison with Illinois
Compare Rock Island County, Illinois racial and ethnic demographics with Illinois to understand regional diversity patterns.
Rock Island County, Illinois Diversity
49.80
moderateIllinois Diversity
61.43
highRacial and Ethnic Composition Comparison
| Racial/Ethnic Group | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| White Alone (Non-Hispanic) | 68.49% | 57.09% | +11.4pp |
| Hispanic or Latino (Any Race) | 14.00% | 19.38% | -5.4pp |
| Black/African American Alone | 10.41% | 12.93% | -2.5pp |
| Two or More Races | 4.22% | 3.78% | +0.4pp |
| Asian Alone | 2.53% | 6.34% | -3.8pp |
| Some Other Race Alone | 0.25% | 0.33% | -0.1pp |
| American Indian and Alaska Native Alone | 0.08% | 0.11% | -0.0pp |
| Native Hawaiian or Other Pacific Islander Alone | 0.03% | 0.02% | +0.0pp |
| Diversity Index Score | 49.80 | 61.43 | -11.63 |
Note: "pp" indicates percentage points. Higher Diversity Index Scores (green) indicate greater racial/ethnic diversity.
Rock Island County, Illinois Economic Demographics: Household Income Statistics (2023)

Economic Snapshot for Rock Island County, Illinois
The following data illustrates the financial landscape of Rock Island County, Illinois, based on the latest U.S. Census Bureau 2023 ACS Estimates.
- Median Household Income
- $66,768 (Adjusted for inflation)
- Total Households Analyzed
- 61,192
Income Comparison with Illinois
Compare Rock Island County, Illinois household income with Illinois to understand regional economic patterns.
Rock Island County, Illinois
$66,768
Illinois
$83,211
Income Distribution Comparison
| Income Bracket | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Less than $20,000 | 14.05% | 11.32% | +2.7pp |
| $20,000 to $34,999 | 12.44% | 9.17% | +3.3pp |
| $35,000 to $49,999 | 12.31% | 9.91% | +2.4pp |
| $50,000 to $74,999 | 15.81% | 14.77% | +1.0pp |
| $75,000 to $149,999 | 32.27% | 30.69% | +1.6pp |
| $150,000 or more | 13.12% | 24.14% | -11.0pp |
Note: "pp" indicates percentage points. Higher percentages in high-income brackets (green) indicate greater affluence compared to Illinois.
Rock Island County, Illinois Real Estate Demographics: Property Values (2023)

Real Estate Market Snapshot for Rock Island County, Illinois
The following data highlights the distribution of owner-occupied housing values in Rock Island County, Illinois, based on the latest U.S. Census Bureau 2023 ACS Estimates.
- Median Property Value
- $144,700
- Total Properties Analyzed
- 41,997 (Owner-occupied units)
Property Value Comparison with Illinois
Compare Rock Island County, Illinois property values with Illinois to understand regional real estate market patterns.
Rock Island County, Illinois
$144,700
Illinois
$280,700
Property Value Distribution Comparison
| Value Bracket | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Less than $25,000 | 3.52% | 2.91% | +0.6pp |
| $25,000 to $49,999 | 2.05% | 2.44% | -0.4pp |
| $50,000 to $99,999 | 18.68% | 7.65% | +11.0pp |
| $100,000 to $199,999 | 44.81% | 19.43% | +25.4pp |
| $200,000 to $499,999 | 28.86% | 50.96% | -22.1pp |
| $500,000 to $999,999 | 1.93% | 15.26% | -13.3pp |
| $1,000,000 or more | 0.15% | 1.35% | -1.2pp |
Note: "pp" indicates percentage points. Higher percentages in high-value brackets (green) indicate more expensive real estate compared to Illinois.
Rock Island County, Illinois Educational Attainment Statistics (2023)

Education Snapshot for Rock Island County, Illinois
The following statistics represent the educational background of residents aged 25 and older in Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- High School Graduate or Higher
- 90.23%
- Bachelor's Degree or Higher
- 24.06%
- Total Population Analyzed (25+)
- 98,209
Education Level Comparison with Illinois
Compare Rock Island County, Illinois educational attainment with Illinois to understand regional education patterns.
Bachelor's+ in Rock Island County, Illinois
24.06%
Bachelor's+ in Illinois
39.23%
Detailed Education Level Comparison
| Education Level | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Less than HS | 9.77% | 9.28% | +0.5pp |
| HS Graduate | 30.71% | 24.61% | +6.1pp |
| Some College/Associate's | 35.45% | 26.88% | +8.6pp |
| Bachelor's Degree | 15.06% | 23.32% | -8.3pp |
| Graduate/Professional | 9.01% | 15.91% | -6.9pp |
| HS Graduate or Higher | 90.23% | 90.72% | -0.5pp |
Note: "pp" indicates percentage points. Higher percentages in advanced education levels (green badges) indicate higher educational attainment compared to Illinois.
Rock Island County, Illinois Health Insurance Coverage Statistics (2023)

Healthcare Coverage Snapshot for Rock Island County, Illinois
The following data illustrates the health coverage landscape of Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- Overall Uninsured Rate
- 6.0%
- Total Uninsured Population
- 8,484
- Total Civilian Population
- 140,477
The uninsured rates vary significantly by demographic group. Children under 18 and seniors aged 65+ generally have higher coverage rates due to public programs like Medicaid/CHIP and Medicare.
Health Insurance Coverage Comparison with Illinois
Compare Rock Island County, Illinois health insurance coverage with Illinois to understand regional healthcare access patterns.
Uninsured in Rock Island County, Illinois
6.0%
Uninsured in Illinois
6.9%
Uninsured Rates by Age and Sex
| Age Group | Rock Island County, Illinois | Illinois | ||
|---|---|---|---|---|
| Male | Female | Male | Female | |
| Under 18 | 5.2% | 4.2% | 3.8% | 3.5% |
| 18-34 years | 16.5% | 7.4% | 13.8% | 9.9% |
| 35-64 years | 7.8% | 6.2% | 9.8% | 7.7% |
| 65+ years | 0.0% | 0.1% | 1.0% | 0.8% |
Note: Lower uninsured rates indicate better health insurance coverage. The 18-34 age group typically has the highest uninsured rates, while seniors 65+ have near-universal coverage through Medicare.
Rock Island County, Illinois Nativity & Citizenship Statistics (2023)

Citizenship Snapshot for Rock Island County, Illinois
The following data details the citizenship status and nativity of the population in Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- U.S. Citizenship Rate
- 95.4% (Native-born + Naturalized)
- Naturalized Citizens
- 5,249 (Foreign-born individuals who acquired citizenship)
- Non-Citizen Residents
- 6,548
Citizenship Comparison with Illinois
Compare Rock Island County, Illinois citizenship and nativity with Illinois to understand regional immigration and naturalization patterns.
Citizenship in Rock Island County, Illinois
95.4%
Citizenship in Illinois
92.6%
Nativity and Citizenship Comparison
| Nativity/Citizenship Status | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Born in the United States | 90.9% | 83.4% | +7.5pp |
| Born in PR or U.S. Territories | 0.1% | 0.4% | -0.3pp |
| Born abroad of American parent(s) | 0.8% | 0.9% | -0.1pp |
| U.S. citizen by naturalization | 3.7% | 8.0% | -4.3pp |
| Not a U.S. citizen | 4.6% | 7.4% | -2.8pp |
| Total U.S. Citizens | 95.4% | 92.6% | +2.8pp |
Note: "pp" indicates percentage points. Higher naturalization rates (green) indicate greater immigrant integration compared to Illinois.
Rock Island County, Illinois Commuting & Transportation Statistics (2023)

Commuter Snapshot for Rock Island County, Illinois
The following data details the commuting habits of the workforce in Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- Drove to Work (Car/Truck/Van)
- 87.5%
- Public Transportation Usage
- 1.5%
- Work From Home Rate
- 6.7%
- Total Workers Analyzed
- 64,747
Transportation Comparison with Illinois
Compare Rock Island County, Illinois commuting patterns with Illinois to understand regional transportation preferences.
Drove in Rock Island County, Illinois
87.5%
Drove in Illinois
74.3%
Commute Mode Comparison
| Transportation Method | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Car, truck, or van | 87.5% | 74.3% | +13.2pp |
| Public transportation | 1.5% | 7.0% | -5.5pp |
| Bicycle | 0.2% | 0.6% | -0.4pp |
| Walked | 3.2% | 3.1% | +0.1pp |
| Taxicab, motorcycle, or other | 1.0% | 1.4% | -0.4pp |
| Worked from home | 6.7% | 13.6% | -6.9pp |
Note: "pp" indicates percentage points. Higher public transit or work-from-home rates (green) indicate more diverse commuting options compared to Illinois.
Rock Island County, Illinois Employment by Class of Worker (2023)

Workforce Snapshot for Rock Island County, Illinois
The following statistics categorize the civilian employed population aged 16 and over in Rock Island County, Illinois by their employment sector, based on U.S. Census Bureau 2023 ACS Estimates.
- Total Employed Civilian Population
- 66,223
- Private Sector (Profit & Non-Profit)
- Includes For-Profit and Non-Profit organizations
- Government Workers
- Includes Local, State, and Federal employees
- Self-Employed Workers
- Includes own not incorporated business workers
Employment Sector Comparison with Illinois
Compare Rock Island County, Illinois employment patterns with Illinois to understand regional workforce composition differences.
Government Employment in Rock Island County, Illinois
6.0% (M) / 7.6% (F)
Government Employment in Illinois
5.6% (M) / 7.7% (F)
Employment Sector Comparison
| Employment Sector | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Private For-Profit (Combined) | M: 40.2% F: 32.2% | M: 40.0% F: 31.7% | M: +0.2pp F: +0.5pp |
| Private Non-Profit | M: 2.9% F: 6.6% | M: 3.3% F: 6.9% | M: -0.4pp F: -0.3pp |
| Government (All Levels) | M: 6.0% F: 7.6% | M: 5.6% F: 7.7% | M: +0.4pp F: -0.1pp |
| Self-Employed | M: 2.3% F: 1.9% | M: 2.7% F: 1.9% | M: -0.4pp F: 0.0pp |
Note: "pp" indicates percentage points. M = Male, F = Female. Green badges indicate higher government employment compared to Illinois.
Definitions: "Private sector" includes employees of for-profit and non-profit companies. "Government" includes all local, state, and federal employees. "Self-employed" refers to those operating their own unincorporated businesses.
Rock Island County, Illinois Veteran Population & Service Statistics (2023)

Veteran Community Snapshot for Rock Island County, Illinois
The following data details the civilian veteran population aged 18 and over in Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- Total Civilian Veterans
- 7,934
- Primary Service Era
- Vietnam Era Only
3,065 veterans (38.6%)
Veteran Population Comparison with Illinois
Compare Rock Island County, Illinois veteran demographics with Illinois to understand regional veteran service patterns.
Total Veterans in Rock Island County, Illinois
7,934
Total Veterans in Illinois
493,667
- Rock Island County, Illinois: Vietnam Era Only (38.6%)
- Illinois: Vietnam Era Only (33.8%)
Service Period Distribution Comparison
| Service Period | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Vietnam Era Only | 38.6% (3,065) | 33.8% (167,029) | +4.8pp |
| Post-9/11 Only | 14.4% (1,139) | 15.7% (77,477) | -1.3pp |
| Gulf War Only | 12.3% (974) | 13.0% (64,276) | -0.7pp |
| Between Gulf War & Vietnam | 11.8% (940) | 14.7% (72,625) | -2.9pp |
| Between Vietnam & Korean | 6.9% (551) | 8.0% (39,388) | -1.1pp |
| Korean War Only | 6.0% (477) | 5.5% (26,956) | +0.5pp |
| Post-9/11 + Gulf War | 5.5% (437) | 5.9% (29,308) | -0.4pp |
| WWII Only | 2.7% (217) | 1.6% (8,078) | +1.1pp |
| Gulf War + Vietnam | 1.1% (88) | 0.8% (4,181) | +0.3pp |
| Post-9/11 + Gulf War + Vietnam | 0.2% (19) | 0.2% (1,069) | 0.0pp |
| Between Korean & WWII | 0.2% (18) | 0.3% (1,386) | -0.1pp |
| Vietnam + Korean | 0.1% (9) | 0.1% (709) | 0.0pp |
Note: "pp" indicates percentage points. Comparisons show relative proportions of veteran populations by service era.
Note: Periods of service include World War II (Dec 1941–Dec 1946), Korean War (Jul 1950–Jan 1955), Vietnam Era (Aug 1964–Apr 1975), Gulf War (Aug 1990–Aug 2001), and Post-9/11 (Sept 2001 or later). Veterans may have served in multiple eras.
Rock Island County, Illinois Family Poverty & Income Statistics (2023)

Family Economic Security Snapshot for Rock Island County, Illinois
The following data categorizes families in Rock Island County, Illinois by their income relative to the federal poverty threshold, based on U.S. Census Bureau 2023 ACS Estimates.
- Families Below Poverty Line (<100%)
- 11.1% (4,081 families)
- Families Near Poverty (100-199%)
- 29.1% (10,726 families)
- Families with Secure Income (200%+)
- 59.9% (22,110 families)
Poverty Rate Comparison with Illinois
Compare Rock Island County, Illinois poverty levels with Illinois to understand regional economic disparities.
Poverty Rate in Rock Island County, Illinois
11.1%
Below poverty linePoverty Rate in Illinois
8.0%
Below poverty lineIncome-to-Poverty Ratio Distribution Comparison
| Income Category | Rock Island County, Illinois | Illinois | Difference |
|---|---|---|---|
| Below Poverty (<100%) | 11.1% (4,081) | 8.0% (251,655) | +3.1pp |
| Near Poverty (100-199%) | 29.1% (10,726) | 25.2% (791,090) | +3.9pp |
| Economic Security (200%+) | 59.9% (22,110) | 66.8% (2,096,595) | -6.9pp |
| Detailed Breakdown | |||
| Below 50% of Poverty | 4.7% | 3.8% | +0.9pp |
| 50-74% of Poverty | 2.9% | 2.0% | +0.9pp |
| 75-99% of Poverty | 3.5% | 2.2% | +1.3pp |
| 100-124% of Poverty | 2.8% | 2.7% | +0.1pp |
| 125-149% of Poverty | 3.2% | 2.8% | +0.4pp |
| 150-174% of Poverty | 3.6% | 3.0% | +0.6pp |
Note: "pp" indicates percentage points. Red badges indicate higher poverty; green badges indicate lower poverty compared to Illinois.
Definition: The "Income-to-Poverty Ratio" measures a family's income against the federal poverty threshold. A ratio below 1.00 means the family is in poverty. Ratios between 1.00 and 1.99 indicate low income ("near poverty"), while ratios of 2.00 or higher suggest greater economic security.
Rock Island County, Illinois SNAP/Food Stamps Statistics (2023)

SNAP Participation Snapshot for Rock Island County, Illinois
The following data details household participation in the Supplemental Nutrition Assistance Program (SNAP) in Rock Island County, Illinois, based on U.S. Census Bureau 2023 ACS Estimates.
- Total Households Receiving SNAP
- 9,914 (16.20% of all households)
- Recipient Households with Children
- 4,775 (48.16% of recipients)
- Total Households Analyzed
- 61,192
SNAP Participation Comparison with Illinois
Compare Rock Island County, Illinois SNAP participation with Illinois to understand regional food assistance needs.
SNAP Participation in Rock Island County, Illinois
16.20%
9,914 householdsSNAP Participation in Illinois
13.38%
682,969 householdsSNAP Household Composition Comparison
| Household Type | Rock Island County, Illinois | Illinois | ||
|---|---|---|---|---|
| With Children | No Children | With Children | No Children | |
| Married-Couple Family | 12.51% (1,240) | 4.97% (493) | 14.56% (99,422) | 7.75% (52,955) |
| Male Householder, No Spouse | 4.36% (432) | 2.02% (200) | 4.79% (32,693) | 3.57% (24,402) |
| Female Householder, No Spouse | 30.41% (3,015) | 3.92% (389) | 22.12% (151,063) | 8.44% (57,670) |
| Nonfamily Households | 0.89% (88) | 40.92% (4,057) | 0.61% (4,169) | 38.16% (260,595) |
| Total SNAP Recipients | 9,914 (16.20% of households) | 682,969 (13.38% of households) | ||
Note: Percentages represent the share of SNAP-receiving households in each category. Higher percentages in households with children often indicate targeting of families with greater nutritional needs.
About this data: The Supplemental Nutrition Assistance Program (SNAP) provides food assistance to low-income families. Households with children often face higher participation rates due to eligibility guidelines prioritizing child nutrition. "Nonfamily households" typically refer to individuals living alone or with unrelated roommates.