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Call/text (707) 474-8855Frontenac, MO · Market Data
Frontenac, Missouri real estate market data.
Real estate market data for Frontenac, MO (St. Louis County) — Census median home value $1,004,500, county listing prices down about 9.9% over the past year.
Frontenac, MO is in St. Louis County, Missouri — covering the whole local market here: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 3,669, with a median household income of $225,813. Census data puts Frontenac's median home value at $1,004,500 (all owner-occupied homes); St. Louis County's current median listing price runs $222,925, down about 9.9% over the past year.
At a glance
Frontenac market snapshot
Population
3,669
Median Household Income
$225,813
Median Home Value (city)
$1,004,500
Median Listing Price (St. Louis County)
$222,925
Median Gross Rent
$-666,666,666/mo
Price Trend (YoY)
-9.9%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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What makes Frontenac different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Frontenac's median home value — across all owner-occupied homes, not just recent sales — at $1,004,500. Separately, St. Louis County's current median listing price (via Realtor.com data, 2026-06-01) runs $222,925. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
St. Louis County's FHFA house price index shows a 3.76% annual change in 2025.
Population & Income
Frontenac has an estimated population of 3,669 and a median household income of $225,813, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Frontenac's Census-reported median home value works out to about 4.4x the area's median household income, and median gross rent runs roughly -3542754% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
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Common questions
Frontenac FAQ
What are home values like in Frontenac, MO?
The Census Bureau's American Community Survey puts Frontenac's median home value at $1,004,500. St. Louis County's current median listing price runs $222,925, down about 9.9% over the past year.
What is the population of Frontenac, MO?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Frontenac's population at approximately 3,669.
What's the median rent in Frontenac, MO?
The Census ACS estimates median gross rent in Frontenac at approximately $-666,666,666 per month.
What is the median household income in Frontenac, MO?
Census ACS data puts the median household income in Frontenac at approximately $225,813.
Is the Frontenac housing market growing?
St. Louis County's FHFA house price index shows a 3.76% annual change in 2025.
Is Frontenac, MO affordable relative to income?
Census ACS data puts Frontenac's median home value at about 4.4 times the median household income, with median gross rent equal to roughly -3542754% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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