Real Estate Data API

63021 Ballwin

406 active listings out of 22K total properties we track in ZIP 63021 (Ballwin, MO) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
406
Median
$383K
±0%
Sold Sep
58
+5.5%
Tracked
22K
Zoomed out

While you're here, take in the bigger picture — maps below show Missouri (statewide), not just 63021. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
22K
Active
406
Median list
$383K
Sales (12mo)
648
Get this data →
Key Numbers
Tracked
22K
Active
406
Median list
$383K
Sales (12mo)
648
Get this data →
Key Numbers
Tracked
22K
Active
406
Median list
$383K
Sales (12mo)
648
Get this data →
Key Numbers
Tracked
22K
Active
406
Median list
$383K
Sales (12mo)
648
Get this data →
Key Numbers
Tracked
22K
Active
406
Median list
$383K
Sales (12mo)
648

Inventory breakdown

Distribution of the 406 currently-active listings in ZIP 63021. Full dataset covers 22K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 129 (32.7%)
$300K–$500K 148 (37.6%)
$500K–$750K 70 (17.8%)
$750K–$1M 31 (7.9%)
$1M–$2M 14 (3.6%)
$2M+ 2 (0.5%)
Active by bedroom count
Studio/1 bd 17
2 bd 66
3 bd 182
4 bd 118
5+ bd 23
Active by property type
Single Family 297 (73.2%)
Condo 59 (14.5%)
Townhouse 30 (7.4%)
Lot 12 (3%)
Other 6 (1.5%)
Multi Family 1 (0.2%)
For Developers

Get Ballwin 63021 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/63021
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "63021",
  "total_tracked": 21541,
  "active": 406,
  "median_list": 382500
}
Get an API key Read the docs

Nearby ZIP codes

Other Missouri ZIPs within a short drive of 63021.

63011
→
Ballwin 63011
2.4 mi away 214 active
63088
→
Valley Park 63088
2.4 mi away 56 active
63040
→
Grover 63040
4.8 mi away 110 active
63017
→
Chesterfield 63017
4.9 mi away 324 active
63131
→
Saint Louis 63131
5.5 mi away 145 active
63026
→
Fenton 63026
6.2 mi away 288 active
63005
→
Chesterfield 63005
6.4 mi away 135 active
63122
→
Saint Louis 63122
6.6 mi away 345 active
Looking for more? Explore Ballwin

ZIP 63021 · Ballwin, MO real estate: market summary

As of November 2026, Straply tracks 21,541 homes in ZIP 63021 (Ballwin, MO), with 406 active for sale at a median list price of $382,500 (~$210/sq ft). Notably, most homes were built in the 1970s.

Median list price
$382,500
Median $/sq ft
$210
Active listings
406
Properties tracked
21,541

Frequently asked: ZIP 63021 · Ballwin, MO real estate

What is the median home price in ZIP 63021?

The median list price in ZIP 63021 (Ballwin, MO) is $382,500 (about $210 per square foot), based on 406 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 63021?

Active listings in ZIP 63021 (Ballwin, MO) concentrate in: 38% $300k–$500k and 33% under $300k.

How many homes are for sale in ZIP 63021?

Straply is tracking 406 active listings in ZIP 63021 (Ballwin, MO) out of 21,541 properties on record as of November 2026.

How old are the homes in ZIP 63021?

Most homes in ZIP 63021 (Ballwin, MO) were built in the 1970s. About 54% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in ZIP 63021?

ZIP 63021 (Ballwin, MO) is mostly single-family homes (73% of listings). Also common: condos 14%, townhouses 7%.

How many bedrooms do homes in ZIP 63021 typically have?

The most common size in ZIP 63021 (Ballwin, MO) is 3 bd.

What areas are near ZIP 63021?

Nearby markets Straply also tracks include Ballwin 63011, Valley Park 63088, Grover 63040, Chesterfield 63017.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.