Millstadt, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Millstadt, Illinois had a total population of 4,008, the 377th largest village in Illinois, with a median household income of $90,901, which is 9% higher than the state average. The poverty rate is 7.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Millstadt Quick Facts
How Millstadt 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 | 4,013 | 4,008 | -0.1% |
| Median household income | $94,536 | $90,901 | -3.8% |
| Median home value | $205,400 | $230,500 | +12.2% |
How Millstadt 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+)
Millstadt Rankings in Illinois
Explore Illinois Rankings
Other Cities in St. Clair County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Belleville | 41,370 | $63,535 | 14.6% | $141,300 |
| O'Fallon | 32,262 | $105,982 | 6.2% | $295,700 |
| East St. Louis | 17,999 | $35,700 | 32.8% | $52,600 |
| Fairview Heights | 16,745 | $80,930 | 8.8% | $177,700 |
| Swansea | 14,710 | $91,587 | 8.7% | $223,600 |
| Shiloh | 14,572 | $99,573 | 6.8% | $274,000 |
| Columbia | 11,127 | $107,606 | 5.4% | $293,000 |
| Mascoutah | 8,816 | $97,375 | 9.8% | $224,900 |
| Freeburg | 4,592 | $92,065 | 6.7% | $241,200 |
| Lebanon | 4,474 | $88,750 | 14.8% | $170,700 |
Cities Similar to Millstadt
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Indian Head Park | 3,974 | $100,149 | $356,600 | 55.6% | 7.4% |
| Scott AFB | 3,957 | $103,390 | N/A | 33.8% | 5.7% |
| Wonder Lake | 4,292 | $94,655 | $252,200 | 21.8% | 2.9% |
| Marshall | 4,040 | $76,250 | $118,500 | 30.9% | 6.8% |
| Breese | 4,301 | $85,222 | $229,600 | 39.4% | 4.2% |
Population Overview
Millstadt is a small community located in Illinois, within St. Clair County. The total population is 4,008. It ranks as the 377th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Millstadt is 47.1 years. This is 21% higher than the state median of 39.0 years. 12.1% 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 Millstadt is $90,901. This is 9% higher than the state median of $83,390. It is also 13% higher than the national median of $80,734. The poverty rate stands at 7.4%. This is 37% lower than the state poverty rate of 11.8%. The unemployment rate is 4.3%. This is 27% lower than the state rate of 5.8%. The median home value is $230,500. Housing costs are 12% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.5x, Millstadt is one of the most affordable housing markets in the area. 82.4% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 67.1%.
Race & Ethnicity
Millstadt has a predominantly White (non-Hispanic) population, comprising 91.8% of all residents. Hispanic or Latino residents account for 1.1%. The White (non-Hispanic) population is significantly higher than the state average (91.8% vs 58.1%). The Hispanic or Latino population (1.1%) is well below the state average of 18.8%.
Education
36.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% 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 99.6%. Notably, 16.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Millstadt, 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 Millstadt, Illinois?
Millstadt, Illinois has a population of 4,008 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Millstadt, IL?
The median household income in Millstadt is $90,901, which is 13% higher than the national median of $80,734.
What is the poverty rate in Millstadt, IL?
The poverty rate in Millstadt is 7.4%. This means approximately 298 residents live below the federal poverty line.
What is the racial makeup of Millstadt, Illinois?
Millstadt's population is 91.8% White, 0.0% Black, 1.1% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Millstadt, IL?
The median home value in Millstadt is $230,500. The home-value-to-income ratio is 2.5x.
How educated is Millstadt, Illinois?
36.5% of adults (25+) in Millstadt hold a bachelor's degree or higher, and 16.7% hold a graduate or professional degree.