Frontenac, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Frontenac, Missouri had a total population of 3,701, the 182nd largest city in Missouri, with a median household income of $233,425, which is 230% higher than the state average. The poverty rate is 2.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 230% above the state average — one of the wealthiest communities in Missouri.
- An exceptionally low poverty rate of 2.0% — among the lowest in Missouri.
- 80.0% of adults hold a bachelor's degree or higher — top 10% in Missouri.
Frontenac Quick Facts
How Frontenac 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 | 3,669 | 3,701 | +0.9% |
| Median household income | $225,813 | $233,425 | +3.4% |
| Median home value | $1,004,500 | $979,800 | -2.5% |
How Frontenac 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: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Frontenac Rankings in Missouri
Explore Missouri Rankings
Other Cities in St. Louis County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Florissant | 51,773 | $65,318 | 10.1% | $148,800 |
| Chesterfield | 49,574 | $133,037 | 3.9% | $472,500 |
| Oakville | 35,333 | $106,362 | 6.4% | $318,600 |
| Wildwood | 35,133 | $161,060 | 2.2% | $495,800 |
| University City | 34,685 | $80,694 | 14.5% | $306,700 |
| Ballwin | 31,279 | $124,626 | 4.8% | $377,100 |
| Mehlville | 29,805 | $67,071 | 7.8% | $218,400 |
| Kirkwood | 29,363 | $121,270 | 5.3% | $451,400 |
| Maryland Heights | 27,880 | $86,436 | 4.7% | $227,000 |
| Hazelwood | 25,114 | $55,908 | 15.9% | $167,400 |
Cities Similar to Frontenac
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| St. Paul | 3,456 | $159,022 | $443,600 | 42.6% | 0.5% |
| Clarkson Valley | 2,584 | $247,000 | $867,000 | 80.2% | 3.0% |
| Warson Woods | 2,393 | $206,979 | $612,800 | 86.8% | 1.3% |
| Fenton | 4,088 | $101,000 | $374,500 | 49.3% | 3.5% |
| Weldon Spring | 5,310 | $158,548 | $544,300 | 57.9% | 0.7% |
Population Overview
Frontenac is a small community located in Missouri, within St. Louis County. The total population is 3,701. It ranks as the 182nd most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Frontenac is 46.3 years. This is 19% higher than the state median of 39.0 years. 10.1% 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 Frontenac is $233,425. This is 230% higher than the state median of $70,702. It is also 189% higher than the national median of $80,734. The poverty rate stands at 2.0%. This is 84% lower than the state poverty rate of 12.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.4%. This is 10% higher than the state rate of 4.0%. The median home value is $979,800. Housing costs are 325% higher than the state median of $230,300. The home-value-to-income ratio is 4.2x. 97.4% of occupied housing units are owner-occupied. This homeownership rate is 43% higher than the state average of 68.1%.
Race & Ethnicity
The largest racial or ethnic group in Frontenac is White (non-Hispanic), making up 75.8% of the population. Asian residents account for 13.1%. The Black or African American population (3.4%) is well below the state average of 10.9%. The Hispanic or Latino population (1.2%) is well below the state average of 5.2%. The Asian population is significantly higher than the state average (13.1% vs 2.1%).
Education
80.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Frontenac in the top 10% of all cities in the state for educational attainment. This is 147% higher than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.5%. Notably, 38.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Frontenac, Missouri 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 Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. 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 Frontenac, Missouri?
Frontenac, Missouri has a population of 3,701 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Frontenac, MO?
The median household income in Frontenac is $233,425, which is 189% higher than the national median of $80,734.
What is the poverty rate in Frontenac, MO?
The poverty rate in Frontenac is 2.0%. This means approximately 73 residents live below the federal poverty line.
What is the racial makeup of Frontenac, Missouri?
Frontenac's population is 75.8% White, 3.4% Black, 1.2% Hispanic/Latino, and 13.1% Asian.
What is the median home value in Frontenac, MO?
The median home value in Frontenac is $979,800. The home-value-to-income ratio is 4.2x.
How educated is Frontenac, Missouri?
80.0% of adults (25+) in Frontenac hold a bachelor's degree or higher, and 38.5% hold a graduate or professional degree.