Mount Carroll, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Mount Carroll, Illinois had a total population of 1,501, the 583rd largest city in Illinois, with a median household income of $58,500, which is 30% lower than the state average. The poverty rate is 14.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 1.5x.
Mount Carroll Quick Facts
How Mount Carroll 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 | 1,515 | 1,501 | -0.9% |
| Median household income | $59,167 | $58,500 | -1.1% |
| Median home value | $88,800 | $86,600 | -2.5% |
How Mount Carroll 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
A less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Mount Carroll Rankings in Illinois
Explore Illinois Rankings
Other Cities in Carroll County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Savanna | 2,816 | $48,036 | 18.6% | $72,400 |
| Thomson | 1,757 | $61,250 | 21.3% | $117,000 |
| Lanark | 1,541 | $59,375 | 12.7% | $96,600 |
| Milledgeville | 1,218 | $59,417 | 11.3% | $94,200 |
| Lake Carroll | 853 | $108,750 | 5.5% | $348,500 |
| Shannon | 772 | $58,929 | 9.7% | $115,100 |
| Chadwick | 591 | $78,688 | 3.4% | $85,700 |
Cities Similar to Mount Carroll
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Warsaw | 1,518 | $58,750 | $96,100 | 19.3% | 11.8% |
| Toulon | 1,485 | $59,167 | $95,500 | 19.9% | 11.3% |
| De Pue | 1,532 | $58,417 | $59,300 | 15.1% | 14.6% |
| Lanark | 1,541 | $59,375 | $96,600 | 14.5% | 12.7% |
| Virginia | 1,543 | $59,375 | $93,100 | 16.9% | 12.8% |
Population Overview
Mount Carroll is a small community located in Illinois, within Carroll County. The total population is 1,501. It ranks as the 583rd most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Mount Carroll is 43.2 years. This is 11% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Mount Carroll is $58,500. This is 30% lower than the state median of $83,390. It is also 28% lower than the national median of $80,734. The poverty rate stands at 14.1%. This is 19% higher than the state poverty rate of 11.8%. The unemployment rate is 3.2%. This is 45% lower than the state rate of 5.8%. The median home value is $86,600. Housing costs are 67% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.5x, Mount Carroll is one of the most affordable housing markets in the area. 71.7% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 67.1%.
Race & Ethnicity
Mount Carroll has a predominantly White (non-Hispanic) population, comprising 93.4% of all residents. Hispanic or Latino residents account for 2.7%. The White (non-Hispanic) population is significantly higher than the state average (93.4% vs 58.1%). The Black or African American population (1.1%) is well below the state average of 13.3%. The Hispanic or Latino population (2.7%) is well below the state average of 18.8%. The Asian population (1.5%) is well below the state average of 5.9%.
Education
21.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 43% 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 95.2%.
Data Sources & Methodology
All demographic data for Mount Carroll, 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 Mount Carroll, Illinois?
Mount Carroll, Illinois has a population of 1,501 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mount Carroll, IL?
The median household income in Mount Carroll is $58,500, which is 28% lower than the national median of $80,734.
What is the poverty rate in Mount Carroll, IL?
The poverty rate in Mount Carroll is 14.1%. This means approximately 201 residents live below the federal poverty line.
What is the racial makeup of Mount Carroll, Illinois?
Mount Carroll's population is 93.4% White, 1.1% Black, 2.7% Hispanic/Latino, and 1.5% Asian.
What is the median home value in Mount Carroll, IL?
The median home value in Mount Carroll is $86,600. The home-value-to-income ratio is 1.5x.
How educated is Mount Carroll, Illinois?
21.5% of adults (25+) in Mount Carroll hold a bachelor's degree or higher, and 8.2% hold a graduate or professional degree.