South County St. Louis.

9 communities. 6 ZIP codes. 5 school districts. The mistake is treating South County like one market. A $240K buyer and a $500K buyer are not shopping the same version of South County.

Roanna Drive, South County St. Louis

South County Home Buying Questions, Answered With 2026 Sales

Short answers first. Each one links to the detail further down the page or on the community’s own page.

How Do the Nine South County Communities Compare?

One table with each community’s 2026 median sale price, number of sales, typical time on market and school district split. Click a name for that community’s full page.

Each row repeats the figures published on that community’s page, which has the full breakdown. Days on market is cumulative (CDOM). Sappington and Green Park are small samples. The areas are measured differently (Census boundary, city limits or MLS high school area), so the sales counts aren’t meant to be added together.

What Did the Typical South County House Look Like in 2026?

Square footage is reported living area, rounded to the nearest foot. “Sold above original list” compares the sale price with the first asking price. Condition isn’t in MLS data.

You Can't Search "South County" on Zillow

South County is not a city. It's not a ZIP code. It's a geographic reference that covers nine distinct communities across six ZIP codes and five school districts. When buyers search "South County homes for sale," they're usually searching the wrong thing.

The price gap between Affton and Sunset Hills is over $400,000. The school district line between Affton and Concord decides whether you're in Affton 101 or Lindbergh. The ZIP code boundary between 63125 and 63127 is the difference between a $230K ranch in Lemay and a $700K-plus home in Sunset Hills. None of that shows up when you filter by "South County" on a real estate portal.

Where Does Your Budget Take You in South County?

South County breaks into three practical tiers. The starter tier gets you into an established owner-occupied community with older housing stock and deferred systems. The mid-tier adds newer construction, better school district pull, and less immediate maintenance. The upper tier is Lindbergh schools, larger lots, and a price point that most first-time buyers can't touch.

Lemay, Affton, Green Park

This is where first-time buyers land when the payment matters most. Expect ranches and split-levels built in the 1950s–1970s, tight lots, and systems that are on borrowed time. FHA and VA buyers are heavy here because the price works, but the condition tradeoffs are real. Federal Pacific panels, cast iron drains, galvanized supply lines, and negative grading are common. Budget $10K–$20K in deferred maintenance on top of the purchase price.

Mehlville, Concord, Crestwood, Oakville

This tier adds school district options and reduces immediate system risk. Lindbergh district overlap starts here. Housing stock is mixed — some 1980s construction, some updated 1960s ranches, some newer builds. Buyers here are balancing payment comfort with resale value and aren't willing to take on a full rehab project. Inspection issues still exist, but they're less catastrophic than the starter tier.

Sappington, Sunset Hills

This is not a starter home zone. The 2026 sales median was $427,500 inside Sappington (a small sample of 14 sales) and $729,050 inside Sunset Hills, where the median house was about 3,000 square feet. If you’re searching for a $230K ranch in Lemay, you’re not competing with these buyers.

What Did $250K, $300K, $350K and $400K Reach in Each South County Community?

The tiers above use medians. This table answers the more practical question: of all the 2026 sales in each community, how many closed at or below your budget? A higher share means more chances to buy.

Counts match each community’s own page. Mehlville and Oakville are counted by MLS high school area; the others by Census boundary or city limits. With 14 and 10 sales, read Sappington and Green Park as directional.

Which School Districts Serve South County?

South County crosses several school districts, and community names don’t line up with them. The 2026 sales on this site’s community pages show how mixed it is: Concord, Green Park, Affton and Lemay each had sales in more than one district. Verify the district for the exact address before you write an offer.

Most of Affton

The Affton School District is separate from Mehlville and Lindbergh, and it covers most of Affton but not all of it. Of the 53 sales inside the Affton community in 2026, 41 were in the Affton School District, 7 in Mehlville R-IX, 4 in Bayless and 1 in Lindbergh.

Sunset Hills, Sappington, Crestwood, Much of Concord

In 2026 sales, Lindbergh covered all 30 sales inside Sunset Hills, all 14 inside Sappington, 39 of 40 inside Crestwood, 39 of 56 inside Concord and 5 of 10 inside Green Park. If you want Lindbergh, verify the exact address; district lines don’t follow community names.

Mehlville, Oakville, Part of Concord, Lemay and Green Park

Mehlville R-IX is the largest district footprint in South County. In 2026, every sale inside the Mehlville and Oakville community boundaries was in Mehlville R-IX, along with 17 of 56 inside Concord, 18 of 47 inside Lemay, 7 of 53 inside Affton and 5 of 10 inside Green Park. Most of Lemay’s sales (27 of 47) were in the Hancock Place School District.

⚠ School district boundaries do not follow ZIP codes or neighborhood names. Two houses on the same street can be in different districts. Always verify the assigned schools by exact property address with the county, the district, or your agent before making any school-driven decisions.

What ZIP Codes Are in South County?

ZIP codes do not equal neighborhoods. A single ZIP can cover multiple neighborhoods with different school districts and price tiers. Searching by ZIP code without understanding what's actually inside that ZIP is how buyers waste time touring homes in the wrong market.

If you're searching "63127 homes for sale," you're looking at Sunset Hills, where the 2026 sales median inside city limits was $729,050. If you want Lemay, you need 63125. If you want Affton, you need 63123. The ZIP code search box does not correct for this.

Where Do First-Time Buyers Land in South County?

The South County starter home zone is Affton, Lemay, and the lower end of Mehlville. This is where FHA and VA buyers are heavy, where ranches and split-levels dominate inventory, and where inspection reports run long. A $230K ranch in this zone will have older systems, deferred maintenance, and repair costs that show up after closing. That's not a defect — it's the price tier reality.

Older Housing Stock, Practical Tradeoffs

Homes in the starter tier are typically built between 1950 and 1980. You're looking at ranches, split-levels, and occasional bi-levels. Lots are tight. Basements are usually finished or partially finished. The systems are aging. Federal Pacific electrical panels, cast iron drain lines, galvanized supply pipes, slab foundations, and negative grading are common. HVAC systems are often 15+ years old. Roofs have 3–5 years of life left if you're lucky.

FHA and VA loans add condition requirements on top of the existing issues. Peeling paint, missing handrails, non-GFCI outlets near water, and roof condition can all block loan approval. If the seller refuses repairs, the deal dies. Budget an extra $10K–$20K in post-closing repairs even if the inspection comes back clean, because older homes reveal problems slowly.

Buyers who value location and payment discipline over turnkey condition. Buyers who understand that $230K in South County means deferred systems, not deferred dreams. Buyers who can handle a project list and aren't expecting perfection. Buyers comparing Affton against Lemay on monthly payment.

How South County’s Roads and Shopping Fit Together

If you live here, you’re spoiled. I’ll admit I’m a little biased: I live about 5 minutes from South County Center and everything Lindbergh has to offer.

The way I describe South County to buyers: it’s anchored by its big-box stores, Target and Walmart among them, and they sit on the same main roads that carry most of the traffic. Shopping, groceries and the interstate are rarely far apart.

I-55 and I-255 do the long-distance work. They meet in South County, which puts downtown, the Illinois side and the rest of the I-270 loop within easy reach from most of the area.

Day to day, it runs on four main roads: Lindbergh, Gravois, Tesson Ferry and Telegraph. Much of the shopping and dining sits along those four.

What I like most is the second layer of roads that feeds them: Sappington Road, Baptist Church Road, Eddie and Park Road, Forder Road, East Concord, Mattis Road and Baumgartner Road, to name most of them. That layer is why South County is easy to get around. If one road is backed up or there’s an accident, I can usually take another and not lose much time.

How Long Is the Commute from South County?

South County sits below the city with three main commute corridors: I-55 north to downtown, Gravois surface route to South City, and 270 west to Clayton and the central corridor. Commute times vary by 15–20 minutes depending on which neighborhood you choose and where you work. The times below are typical drive-time estimates, not measured averages; your exact route, departure time and traffic will change them.

I-55 Corridor · 20–25 Minutes

Affton and Lemay have the shortest downtown commute via I-55 northbound. Morning rush (7–9 AM) adds 5–10 minutes. The route is straightforward and predictable. If you work downtown and want to stay in South County, Affton and Lemay are the most practical choices. Oakville and Mehlville add 5–7 minutes. Sunset Hills and Crestwood push closer to 30 minutes in traffic.

270 to 40/64 · 25–35 Minutes

Concord, Oakville, and Sunset Hills have better access to Clayton via 270 north to I-64. Crestwood and Sappington are close behind. Affton and Lemay require surface streets to reach 270, which adds 10 minutes. If you work in Clayton, the medical corridor, or the Central West End, the west side of South County (Concord, Crestwood, Sunset Hills) makes more sense than the east side (Affton, Lemay).

Gravois Route · 15–25 Minutes

Affton has direct Gravois access, which cuts through to South City faster than the highway. It's a surface route with lights and slower speeds, but it's shorter distance. Lemay can use Gravois or I-55. If you work in Tower Grove, The Hill, or near Soulard, Affton is the most direct South County option.

I-270 to I-70 · About 25–40 Minutes

Almost the whole trip is I-270. From the I-55 / I-255 interchange it’s about 20 miles of I-270 to the I-70 exit for the airport, then a few miles to the terminals. Mehlville is about 25 miles and roughly 35 minutes away; deeper parts of Oakville are closer to 28 miles and 40 minutes. The west side, Sunset Hills and Crestwood, is closer because I-270 runs right through it. Add time at rush hour, and give yourself a cushion for a flight.

Winter driving matters in South County. Sunset Hills and Crestwood have more hills. Affton and Lemay are flatter. If you're sensitive to ice and snow commutes, the topography difference is real.

What Is Daily Life Like in South County?

Most of South County’s everyday life runs along two roads, Lindbergh and Telegraph. Between them are the grocery stores, big-box stores, pharmacies and most of the restaurants. From much of Concord, nearly all of it is about five minutes away.

The thing I’d tell any buyer: South County isn’t about prestige. It’s about convenience. It’s well developed, and the road network gives you options when one road backs up. That’s not true of Manchester Road in West County or Kirkwood Road in Kirkwood.

Traffic is predictable once you know it. Telegraph is busy, and at rush hour turning left to head south on Telegraph can feel nearly impossible. The east-west roads in Mehlville stay fairly easy even at rush hour. The slow spots are getting onto I-270 in the morning and getting off it heading south around 3 p.m.; getting off at Butler Hill Road instead can save 5 to 10 minutes.

Highway access is quick from most of the area. North of I-255 in Mehlville it’s often under 5 minutes, about 10 at rush hour from most of Mehlville, and about 7–8 minutes from Oakville to the I-55 / I-255 interchange. Bigger errands are short drives too. Arnold isn’t part of South County, but many of us who live along the I-55 corridor go there often. If Home Depot doesn’t have what I need, I’m at Lowe’s in Arnold in 12 to 15 minutes.

And if you’re a little flexible about the school district, almost anywhere in South County works, because it’s so well developed.

People ask me what I don’t like about living here. Honestly? That my friends and family don’t all live here too. There isn’t much I would change, and it would be hard for me to move anywhere else.

Daily life by area: Oakville · Mehlville · Concord

Complete Neighborhood Index

Run the Numbers Before You Tour

Want the Straight Version?

No generic pitch. Just a real conversation about which South County neighborhood actually fits your budget, your commute, and your tolerance for deferred maintenance. In 13 years and 250+ transactions, I’ve learned what $230K in Lemay looks like versus $280K in Concord versus $450K in Crestwood. If you want the blunt version of where you fit, call me.

Complete St. Louis Home Buyer Guide

From pre-approval to closing day — see the complete buying process with all resources organized by stage.