Carbon Cliff, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Carbon Cliff, Illinois had a total population of 2,151, the 490th largest village in Illinois, with a median household income of $55,536, which is 33% lower than the state average. The poverty rate is 19.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 33% below the state average, indicating significant economic challenges.
- Only 5.8% of adults have a bachelor's degree, well below the national average of 35.7%.
- Housing is very affordable with a home-value-to-income ratio of just 2.4x.
Carbon Cliff Quick Facts
How Carbon Cliff Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 2,248 | 2,151 | -4.3% |
| Median household income | $55,000 | $55,536 | +1.0% |
| Median home value | $124,600 | $134,600 | +8.0% |
How Carbon Cliff Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Carbon Cliff Rankings in Illinois
Explore Illinois Rankings
Other Cities in Rock Island County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Moline | 42,197 | $67,701 | 15.5% | $146,300 |
| Rock Island | 36,151 | $59,041 | 21.0% | $125,900 |
| East Moline | 20,904 | $61,779 | 19.8% | $134,600 |
| Silvis | 7,955 | $62,375 | 15.4% | $161,600 |
| Milan | 5,034 | $62,597 | 12.3% | $119,300 |
| Coal Valley | 4,229 | $106,850 | 3.9% | $215,700 |
| Hampton | 1,926 | $90,406 | 4.7% | $184,900 |
| Port Byron | 1,854 | $111,667 | 7.3% | $278,200 |
| Andalusia | 1,021 | $77,222 | 4.8% | $168,000 |
| Rapids City | 980 | $83,125 | 3.3% | $203,700 |
Cities Similar to Carbon Cliff
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Arthur | 2,083 | $54,907 | $151,300 | 20.0% | 19.2% |
| Nokomis | 2,147 | $60,326 | $83,900 | 11.9% | 9.4% |
| Sumner | 2,252 | $55,625 | $46,000 | 4.4% | 35.3% |
| White Hall | 2,257 | $55,054 | $63,800 | 15.1% | 17.3% |
| South Roxana | 2,181 | $60,214 | $88,700 | 5.7% | 22.3% |
Population Overview
Carbon Cliff is a small community located in Illinois, within Rock Island County. The total population is 2,151. It ranks as the 490th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Carbon Cliff is 36.7 years. This is 6% lower than the state median of 39.0 years. 11.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Carbon Cliff is $55,536. This is 33% lower than the state median of $83,390. It is also 31% lower than the national median of $80,734. The poverty rate stands at 19.1%. This is 62% higher than the state poverty rate of 11.8%. The unemployment rate is 4.9%. This is 16% lower than the state rate of 5.8%. The median home value is $134,600. Housing costs are 49% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.4x, Carbon Cliff is one of the most affordable housing markets in the area. 53.1% of occupied housing units are owner-occupied. This homeownership rate is 21% lower than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Carbon Cliff is White (non-Hispanic), making up 67.2% of the population. Black or African American residents account for 14.4%.
Education
5.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 85% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 78.4%.
Data Sources & Methodology
All demographic data for Carbon Cliff, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Carbon Cliff, Illinois?
Carbon Cliff, Illinois has a population of 2,151 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Carbon Cliff, IL?
The median household income in Carbon Cliff is $55,536, which is 31% lower than the national median of $80,734.
What is the poverty rate in Carbon Cliff, IL?
The poverty rate in Carbon Cliff is 19.1%. This means approximately 402 residents live below the federal poverty line.
What is the racial makeup of Carbon Cliff, Illinois?
Carbon Cliff's population is 67.2% White, 14.4% Black, 12.6% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Carbon Cliff, IL?
The median home value in Carbon Cliff is $134,600. The home-value-to-income ratio is 2.4x.
How educated is Carbon Cliff, Illinois?
5.8% of adults (25+) in Carbon Cliff hold a bachelor's degree or higher, and 1.4% hold a graduate or professional degree.