Montgomery, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Montgomery, Illinois had a total population of 21,515, the 112th largest village in Illinois, with a median household income of $103,734, which is 24% higher than the state average. The poverty rate is 6.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Montgomery Quick Facts
How Montgomery 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 | 21,205 | 21,515 | +1.5% |
| Median household income | $96,985 | $103,734 | +7.0% |
| Median home value | $270,700 | $299,500 | +10.6% |
How Montgomery 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 diverse community with significant representation from multiple racial and ethnic groups.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Montgomery Rankings in Illinois
Explore Illinois Rankings
Other Cities in Kane County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Carpentersville | 37,346 | $86,917 | 10.3% | $234,100 |
| Algonquin | 30,067 | $134,525 | 4.1% | $351,000 |
| Huntley | 28,005 | $88,536 | 8.6% | $334,300 |
| South Elgin | 24,217 | $127,203 | 6.5% | $339,100 |
| Geneva | 21,258 | $144,341 | 3.8% | $441,400 |
| North Aurora | 18,696 | $114,305 | 6.3% | $342,100 |
| Pingree Grove | 10,914 | $114,294 | 1.2% | $320,800 |
| Campton Hills | 10,877 | $209,134 | 2.9% | $547,500 |
| Sugar Grove | 9,240 | $121,207 | 4.7% | $401,900 |
| Gilberts | 8,606 | $146,333 | 5.5% | $347,300 |
Cities Similar to Montgomery
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Bloomingdale | 22,457 | $102,928 | $376,500 | 45.0% | 5.5% |
| Darien | 21,879 | $111,215 | $398,700 | 52.4% | 4.2% |
| Grayslake | 20,929 | $113,972 | $309,500 | 58.5% | 6.3% |
| Villa Park | 22,345 | $95,015 | $329,000 | 36.3% | 4.7% |
| Roselle | 22,752 | $111,318 | $344,700 | 40.9% | 4.1% |
Population Overview
Montgomery is a small city located in Illinois, within Kane County. The total population is 21,515. It ranks as the 112th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Montgomery is 35.3 years. This is 9% lower than the state median of 39.0 years. With 28.4% of the population under 18, Montgomery has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Montgomery is $103,734. This is 24% higher than the state median of $83,390. It is also 28% higher than the national median of $80,734. The poverty rate stands at 6.7%. This is 43% lower than the state poverty rate of 11.8%. The unemployment rate is 3.4%. This is 42% lower than the state rate of 5.8%. The median home value is $299,500. Housing costs are 14% higher than the state median of $263,300. With a home-value-to-income ratio of just 2.9x, Montgomery is one of the most affordable housing markets in the area. 79.3% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Montgomery is White (non-Hispanic), making up 53.8% of the population. Hispanic or Latino residents account for 32.0%. The Hispanic or Latino population is significantly higher than the state average (32.0% vs 18.8%). The Asian population (2.1%) is well below the state average of 5.9%.
Education
28.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 24% 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 91.1%.
Data Sources & Methodology
All demographic data for Montgomery, 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 Montgomery, Illinois?
Montgomery, Illinois has a population of 21,515 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Montgomery, IL?
The median household income in Montgomery is $103,734, which is 28% higher than the national median of $80,734.
What is the poverty rate in Montgomery, IL?
The poverty rate in Montgomery is 6.7%. This means approximately 1,419 residents live below the federal poverty line.
What is the racial makeup of Montgomery, Illinois?
Montgomery's population is 53.8% White, 7.9% Black, 32.0% Hispanic/Latino, and 2.1% Asian.
What is the median home value in Montgomery, IL?
The median home value in Montgomery is $299,500. The home-value-to-income ratio is 2.9x.
How educated is Montgomery, Illinois?
28.7% of adults (25+) in Montgomery hold a bachelor's degree or higher, and 5.6% hold a graduate or professional degree.