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Map of Frontenac, Missouri highlighted within St. Louis County — Better Rate Mortgage neighborhood guide showing a $2,188,562 median home price.

St. Louis County · Neighborhood guide

Buying a Home in Frontenac, MO

What it actually costs to buy in this established St. Louis County suburb — real prices, monthly payments, income needed, and the local rules most buyers don’t know. From a local broker, not a national average.

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Median price
$2,188,562
Redfin · May 2026
Est. payment
~$14,400/mo
20% down · illustrative
Income to qualify
~$402k+
household · illustrative
Schools
Ladue School District
public K-12 district

What it costs to buy in Frontenac

Frontenac’s median sale price is about $2,188,562 — among the highest medians in the St. Louis area. Here’s a rough monthly picture at that price:

Est. monthly payment
≈ $14,400
at $2,188,562
20% down · 30-yr fixed
Principal & interest
≈ $11,355
Property tax
≈ $2,460
Home insurance
≈ $600
PMI
None at 20% down
Putting less than 20% down adds PMI and raises the payment. Illustrative figures only — run your real numbers in the calculator with Better Rate’s actual rate.

What you’d need to afford it

At Frontenac’s median, a typical buyer needs roughly $400,000–$410,000 in household income (less with more down, more if you carry other debt). Want to see where your budget actually reaches across St. Louis? Explore the affordability map to compare Frontenac with every nearby community.

Frontenac by the numbers

Population
3,701
Median household income
$233,425
Owner-occupied
97%
Typical home built
~1969

Source: U.S. Census Bureau, ACS 2024 5-year.

Run your Frontenac numbers

These are the same free tools that power this page — try them with Frontenac’s prices and your own situation:

Living in Frontenac: what buyers should know

The feel

Frontenac is a small West St. Louis County city between Ladue and Des Peres, known for Plaza Frontenac shopping, large residential lots, and the Ladue school district. Housing is largely estate and custom homes on generous lots, with limited condominium options near Plaza Frontenac.

Schools

Frontenac is served by the Ladue School District. For factual, source-based ratings, review the district’s Missouri DESE report card or its GreatSchools profile as you weigh your budget.

Local rules most buyers miss

No occupancy permit for resales: Frontenac does not require a residential occupancy inspection or permit for a standard home purchase. Confirm any specifics with the city's building department. Confirm current requirements with the City of Frontenac (314-994-3200).

Property taxes: Missouri assesses homes at 19% of market value, and your bill depends on Frontenac’s combined St. Louis County and school-district levies. Taxes are a real line in your payment here — don’t estimate from a national calculator.

Good news: Missouri has no real-estate transfer tax, so that’s one closing cost you won’t pay.

How Frontenac compares to nearby communities

Median sale prices for Frontenac and its immediate neighbors (Redfin, May 2026):

Community Median price
Frontenac $2,188,562
Ladue $1,533,730
Clayton $911,300
Town and Country $1,078,871
Des Peres $754,821

Prefer a different price point? Compare Frontenac with the neighbors above, or see them all on the map →.

Buying in Frontenac with Better Rate Mortgage

We’re a St. Louis broker — we know Frontenac’s inspections, its taxes, and what it takes to win a home here. For qualified buyers, our $5,000 Seller Guarantee can make your offer stand out in a competitive Frontenac market by giving sellers extra confidence your financing will close.

Thinking about Frontenac? Get your real rate first.

Get your rate →

Frontenac home-buying FAQ

How much does a home cost in Frontenac, MO?
The median sale price is about $2,188,562 (St. Louis County, 3-month sales-weighted average, May 2026, Redfin) — among the highest medians in the St. Louis area.
What income do you need to buy in Frontenac?
At the ~$2,188,562 median with 20% down, typically about $400,000–$410,000 household income, depending on rate, taxes, and other debts. Check your number on the affordability map and calculator.
Does Frontenac require an occupancy inspection?
Frontenac does not require a residential occupancy inspection or permit for a standard home purchase. Confirm any specifics with the city's building department. Confirm current requirements with the City of Frontenac (314-994-3200).

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Sources & disclaimers. Median home prices: Redfin Data Center, 3-month sales-weighted average, as of May 2026. Payment and income figures are illustrative estimates for general education only, assume an illustrative rate and typical St. Louis County tax/insurance, and are not Better Rate Mortgage’s actual rates or a commitment to lend; your terms depend on your application. Confirm occupancy-inspection and permit requirements with your local building department. Reviewed by Sean Zalmanoff, Founder & Chief Loan Officer, Better Rate Mortgage (NMLS #239823). Company NMLS #2401335. Equal Housing Lender. Basemap © OpenStreetMap contributors, © CARTO.

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