Real Estate Data API

63021 Ballwin

199 active listings out of 21K 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
199
Median
$400K
±0%
Sold/mo
1
-98.3%
Tracked
21K
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
21K
Active
199
Median list
$400K
Sales (12mo)
748
Get this data →
Key Numbers
Tracked
21K
Active
199
Median list
$400K
Sales (12mo)
748
Get this data →
Key Numbers
Tracked
21K
Active
199
Median list
$400K
Sales (12mo)
748
Get this data →
Key Numbers
Tracked
21K
Active
199
Median list
$400K
Sales (12mo)
748
Get this data →
Key Numbers
Tracked
21K
Active
199
Median list
$400K
Sales (12mo)
748

Inventory breakdown

Distribution of the 199 currently-active listings in ZIP 63021. Full dataset covers 21K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 51 (26.3%)
$300K–$500K 77 (39.7%)
$500K–$750K 37 (19.1%)
$750K–$1M 20 (10.3%)
$1M–$2M 8 (4.1%)
$2M+ 1 (0.5%)
Active by bedroom count
Studio/1 bd 5
2 bd 31
3 bd 84
4 bd 59
5+ bd 20
Active by property type
Single Family 151 (75.9%)
Condo 39 (19.6%)
Townhouse 8 (4%)
Multi Family 1 (0.5%)
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": 21196,
  "active": 199,
  "median_list": 400000
}
Get an API key Read the docs

ZIP 63021 · Ballwin, MO real estate: market summary

As of June 2026, Straply tracks 21,196 homes in ZIP 63021 (Ballwin, MO), with 199 active for sale at a median list price of $400,000 (~$201/sq ft). Notably, most homes were built in the 1970s.

Median list price
$400,000
Median $/sq ft
$201
Active listings
199
Properties tracked
21,196

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 $400,000 (about $201 per square foot), based on 199 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 63021?

Active listings in ZIP 63021 (Ballwin, MO) concentrate in: 40% $300k–$500k and 26% under $300k.

How many homes are for sale in ZIP 63021?

Straply is tracking 199 active listings in ZIP 63021 (Ballwin, MO) out of 21,196 properties on record as of June 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 (76% of listings). Also common: condos 20%.

How many bedrooms do homes in ZIP 63021 typically have?

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

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