Modesto, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Modesto, Illinois had a total population of 145, the 1278th largest village in Illinois, with a median household income of $70,417, which is 16% lower than the state average. The poverty rate is 18.6%.
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 1.2x.
Modesto Quick Facts
How Modesto 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 | 171 | 145 | -15.2% |
| Median household income | $69,375 | $70,417 | +1.5% |
| Median home value | $68,800 | $81,400 | +18.3% |
How Modesto 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+)
Modesto Rankings in Illinois
Explore Illinois Rankings
Other Cities in Macoupin County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Carlinville | 5,480 | $57,708 | 20.5% | $105,700 |
| Staunton | 4,298 | $57,904 | 14.5% | $143,500 |
| Gillespie | 2,815 | $82,772 | 17.1% | $91,000 |
| Brighton | 2,306 | $80,214 | 10.1% | $145,000 |
| Mount Olive | 1,872 | $55,625 | 17.8% | $94,100 |
| Girard | 1,743 | $50,300 | 31.0% | $98,100 |
| Benld | 1,495 | $47,850 | 15.4% | $82,400 |
| Bunker Hill | 1,178 | $75,917 | 10.5% | $137,500 |
| Shipman | 618 | $56,771 | 13.7% | $89,400 |
| Wilsonville | 505 | $45,417 | 12.5% | $85,000 |
Cities Similar to Modesto
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Kell | 145 | $67,500 | $60,000 | 4.9% | 2.8% |
| New Grand Chain | 151 | N/A | $63,300 | 6.9% | 19.9% |
| Keensburg | 149 | $73,409 | $67,500 | 1.5% | 8.1% |
| Holcomb | 152 | $68,125 | $130,600 | 14.6% | 21.7% |
| Eagarville | 155 | $70,781 | $64,400 | 14.3% | 12.9% |
A note before these figures: with a population of 145, Modesto's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Modesto is a small community located in Illinois, within Macoupin County. The total population is 145. It ranks as the 1278th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Modesto is 48.9 years. This is 25% higher than the state median of 39.0 years. Only 12.4% of residents are under 18, indicating fewer families with children. 12.4% 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 Modesto is $70,417. This is 16% lower than the state median of $83,390. It is also 13% lower than the national median of $80,734. The poverty rate stands at 18.6%. This is 58% higher than the state poverty rate of 11.8%. The unemployment rate is 3.1%. This is 47% lower than the state rate of 5.8%. The median home value is $81,400. Housing costs are 69% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.2x, Modesto is one of the most affordable housing markets in the area. 93.2% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 67.1%.
Race & Ethnicity
Modesto has a predominantly White (non-Hispanic) population, comprising 98.6% of all residents. Hispanic or Latino residents account for 0.7%. The White (non-Hispanic) population is significantly higher than the state average (98.6% vs 58.1%). The Hispanic or Latino population (0.7%) is well below the state average of 18.8%.
Education
24.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 36% 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 85.0%.
Data Sources & Methodology
All demographic data for Modesto, 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.
Free data download: Get all Illinois city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Modesto, Illinois?
Modesto, Illinois has a population of 145 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Modesto, IL?
The median household income in Modesto is $70,417, which is 13% lower than the national median of $80,734.
What is the poverty rate in Modesto, IL?
The poverty rate in Modesto is 18.6%. This means approximately 27 residents live below the federal poverty line.
What is the racial makeup of Modesto, Illinois?
Modesto's population is 98.6% White, 0.0% Black, 0.7% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Modesto, IL?
The median home value in Modesto is $81,400. The home-value-to-income ratio is 1.2x.
How educated is Modesto, Illinois?
24.2% of adults (25+) in Modesto hold a bachelor's degree or higher, and 3.3% hold a graduate or professional degree.